diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/exec.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/exec.js
new file mode 100644
index 000000000000..18a3b07a8cb5
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/exec.js
@@ -0,0 +1,15 @@
+"use strict";
+
+const results = [0, 1, 2];
+const fns = [];
+
+for (let result of results) {
+  result = result * 2;
+  fns.push(() => {
+    return result;
+  });
+}
+
+expect(fns[0]()).toBe(0);
+expect(fns[1]()).toBe(2);
+expect(fns[2]()).toBe(4);
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/input.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/input.js
new file mode 100644
index 000000000000..bd369896a5c3
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/input.js
@@ -0,0 +1,6 @@
+for (let result of results) {
+  result = otherValue;
+  fn(() => {
+    result;
+  });
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/options.json b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/options.json
new file mode 100644
index 000000000000..4830b713117e
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/options.json
@@ -0,0 +1,6 @@
+{
+  "plugins": [
+    ["transform-block-scoping", { "loose": true }],
+    "transform-for-of"
+  ]
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/output.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/output.js
new file mode 100644
index 000000000000..e8ebf2e84e89
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-after/output.js
@@ -0,0 +1,22 @@
+var _loop = function (_result) {
+  _result = otherValue;
+  fn(() => {
+    _result;
+  });
+  result = _result;
+};
+
+var _iterator = babelHelpers.createForOfIteratorHelper(results),
+    _step;
+
+try {
+  for (_iterator.s(); !(_step = _iterator.n()).done;) {
+    var result = _step.value;
+
+    _loop(result);
+  }
+} catch (err) {
+  _iterator.e(err);
+} finally {
+  _iterator.f();
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/exec.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/exec.js
new file mode 100644
index 000000000000..18a3b07a8cb5
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/exec.js
@@ -0,0 +1,15 @@
+"use strict";
+
+const results = [0, 1, 2];
+const fns = [];
+
+for (let result of results) {
+  result = result * 2;
+  fns.push(() => {
+    return result;
+  });
+}
+
+expect(fns[0]()).toBe(0);
+expect(fns[1]()).toBe(2);
+expect(fns[2]()).toBe(4);
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/input.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/input.js
new file mode 100644
index 000000000000..bd369896a5c3
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/input.js
@@ -0,0 +1,6 @@
+for (let result of results) {
+  result = otherValue;
+  fn(() => {
+    result;
+  });
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/options.json b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/options.json
new file mode 100644
index 000000000000..cd7397f15a8a
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/options.json
@@ -0,0 +1,6 @@
+{
+  "plugins": [
+    "transform-for-of",
+    ["transform-block-scoping", { "loose": true }]
+  ]
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/output.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/output.js
new file mode 100644
index 000000000000..18072d8f626b
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-before/output.js
@@ -0,0 +1,20 @@
+var _iterator = babelHelpers.createForOfIteratorHelper(results),
+    _step;
+
+try {
+  var _loop = function () {
+    var result = _step.value;
+    result = otherValue;
+    fn(() => {
+      result;
+    });
+  };
+
+  for (_iterator.s(); !(_step = _iterator.n()).done;) {
+    _loop();
+  }
+} catch (err) {
+  _iterator.e(err);
+} finally {
+  _iterator.f();
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/exec.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/exec.js
new file mode 100644
index 000000000000..18a3b07a8cb5
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/exec.js
@@ -0,0 +1,15 @@
+"use strict";
+
+const results = [0, 1, 2];
+const fns = [];
+
+for (let result of results) {
+  result = result * 2;
+  fns.push(() => {
+    return result;
+  });
+}
+
+expect(fns[0]()).toBe(0);
+expect(fns[1]()).toBe(2);
+expect(fns[2]()).toBe(4);
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/input.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/input.js
new file mode 100644
index 000000000000..bd369896a5c3
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/input.js
@@ -0,0 +1,6 @@
+for (let result of results) {
+  result = otherValue;
+  fn(() => {
+    result;
+  });
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/options.json b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/options.json
new file mode 100644
index 000000000000..fe50de04b18d
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/options.json
@@ -0,0 +1,6 @@
+{
+  "plugins": [
+    ["transform-block-scoping", { "loose": true }],
+    ["transform-for-of", { "loose": true }]
+  ]
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/output.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/output.js
new file mode 100644
index 000000000000..2cc12e89c676
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-after/output.js
@@ -0,0 +1,13 @@
+var _loop = function (_result) {
+  _result = otherValue;
+  fn(() => {
+    _result;
+  });
+  result = _result;
+};
+
+for (var _iterator = babelHelpers.createForOfIteratorHelperLoose(results), _step; !(_step = _iterator()).done;) {
+  var result = _step.value;
+
+  _loop(result);
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/exec.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/exec.js
new file mode 100644
index 000000000000..18a3b07a8cb5
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/exec.js
@@ -0,0 +1,15 @@
+"use strict";
+
+const results = [0, 1, 2];
+const fns = [];
+
+for (let result of results) {
+  result = result * 2;
+  fns.push(() => {
+    return result;
+  });
+}
+
+expect(fns[0]()).toBe(0);
+expect(fns[1]()).toBe(2);
+expect(fns[2]()).toBe(4);
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/input.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/input.js
new file mode 100644
index 000000000000..bd369896a5c3
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/input.js
@@ -0,0 +1,6 @@
+for (let result of results) {
+  result = otherValue;
+  fn(() => {
+    result;
+  });
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/options.json b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/options.json
new file mode 100644
index 000000000000..741abfaf85da
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/options.json
@@ -0,0 +1,6 @@
+{
+  "plugins": [
+    ["transform-for-of", { "loose": true }],
+    ["transform-block-scoping", { "loose": true }]
+  ]
+}
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/output.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/output.js
new file mode 100644
index 000000000000..ef31604d8090
--- /dev/null
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-8128-for-of-loose-before/output.js
@@ -0,0 +1,11 @@
+var _loop = function () {
+  var result = _step.value;
+  result = otherValue;
+  fn(() => {
+    result;
+  });
+};
+
+for (var _iterator = babelHelpers.createForOfIteratorHelperLoose(results), _step; !(_step = _iterator()).done;) {
+  _loop();
+}