diff --git a/lib/cli-engine/file-enumerator.js b/lib/cli-engine/file-enumerator.js
index 2840d9fe2da..a027359ae51 100644
--- a/lib/cli-engine/file-enumerator.js
+++ b/lib/cli-engine/file-enumerator.js
@@ -292,26 +292,18 @@ class FileEnumerator {
     _iterateFiles(pattern) {
         const { cwd, globInputPaths } = internalSlotsMap.get(this);
         const absolutePath = path.resolve(cwd, pattern);
-
-        if (globInputPaths && isGlobPattern(pattern)) {
-            return this._iterateFilesWithGlob(
-                absolutePath,
-                dotfilesPattern.test(pattern)
-            );
-        }
-
+        const isDot = dotfilesPattern.test(pattern);
         const stat = statSafeSync(absolutePath);
 
         if (stat && stat.isDirectory()) {
-            return this._iterateFilesWithDirectory(
-                absolutePath,
-                dotfilesPattern.test(pattern)
-            );
+            return this._iterateFilesWithDirectory(absolutePath, isDot);
         }
-
         if (stat && stat.isFile()) {
             return this._iterateFilesWithFile(absolutePath);
         }
+        if (globInputPaths && isGlobPattern(pattern)) {
+            return this._iterateFilesWithGlob(absolutePath, isDot);
+        }
 
         return [];
     }
diff --git a/tests/lib/cli-engine/cli-engine.js b/tests/lib/cli-engine/cli-engine.js
index de152f3bae8..427181affce 100644
--- a/tests/lib/cli-engine/cli-engine.js
+++ b/tests/lib/cli-engine/cli-engine.js
@@ -3454,6 +3454,47 @@ describe("CLIEngine", () => {
                 assert.strictEqual(report.results[0].messages[0].message, "ok");
             });
         });
+
+        describe("glob pattern '[ab].js'", () => {
+            const root = getFixturePath("cli-engine/unmatched-glob");
+
+            it("should match '[ab].js' if existed.", () => {
+                CLIEngine = defineCLIEngineWithInMemoryFileSystem({
+                    cwd: () => root,
+                    files: {
+                        "a.js": "",
+                        "b.js": "",
+                        "ab.js": "",
+                        "[ab].js": "",
+                        ".eslintrc.yml": "root: true"
+                    }
+                }).CLIEngine;
+                engine = new CLIEngine();
+
+                const { results } = engine.executeOnFiles(["[ab].js"]);
+                const filenames = results.map(r => path.basename(r.filePath));
+
+                assert.deepStrictEqual(filenames, ["[ab].js"]);
+            });
+
+            it("should match 'a.js' and 'b.js' if '[ab].js' didn't existed.", () => {
+                CLIEngine = defineCLIEngineWithInMemoryFileSystem({
+                    cwd: () => root,
+                    files: {
+                        "a.js": "",
+                        "b.js": "",
+                        "ab.js": "",
+                        ".eslintrc.yml": "root: true"
+                    }
+                }).CLIEngine;
+                engine = new CLIEngine();
+
+                const { results } = engine.executeOnFiles(["[ab].js"]);
+                const filenames = results.map(r => path.basename(r.filePath));
+
+                assert.deepStrictEqual(filenames, ["a.js", "b.js"]);
+            });
+        });
     });
 
     describe("getConfigForFile", () => {