diff --git a/packages/babel-generator/src/generators/types.js b/packages/babel-generator/src/generators/types.js
index e0e70b8ad45a..cae6aed8d345 100644
--- a/packages/babel-generator/src/generators/types.js
+++ b/packages/babel-generator/src/generators/types.js
@@ -219,7 +219,7 @@ export function BigIntLiteral(node: Object) {
     this.token(raw);
     return;
   }
-  this.token(node.value);
+  this.token(node.value + "n");
 }
 
 export function PipelineTopicExpression(node: Object) {
diff --git a/packages/babel-generator/test/fixtures/minified/bigint/input.js b/packages/babel-generator/test/fixtures/minified/bigint/input.js
new file mode 100644
index 000000000000..c18f9c388d96
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/minified/bigint/input.js
@@ -0,0 +1 @@
+const N_A = 600221407600000000000000n;
diff --git a/packages/babel-generator/test/fixtures/minified/bigint/output.js b/packages/babel-generator/test/fixtures/minified/bigint/output.js
new file mode 100644
index 000000000000..7c0100e7f1f5
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/minified/bigint/output.js
@@ -0,0 +1 @@
+const N_A=600221407600000000000000n;