diff --git a/packages/babel-generator/src/printer.ts b/packages/babel-generator/src/printer.ts
index c7d71d5a5cb8..70cf22cf6721 100644
--- a/packages/babel-generator/src/printer.ts
+++ b/packages/babel-generator/src/printer.ts
@@ -823,8 +823,10 @@ class Printer {
     const lastCommentLine = this._lastCommentLine;
     if (startLine > 0 && lastCommentLine > 0) {
       const offset = startLine - lastCommentLine;
-      this.newline(offset || 1);
-      return;
+      if (offset >= 0) {
+        this.newline(offset || 1);
+        return;
+      }
     }
 
     // don't add newlines at the beginning of the file
diff --git a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-4363/output.js b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-4363/output.js
index 01c0b28d434f..27b56c755aff 100644
--- a/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-4363/output.js
+++ b/packages/babel-plugin-transform-block-scoping/test/fixtures/general/issue-4363/output.js
@@ -9,7 +9,8 @@ function WithoutCurlyBraces() {
         return foo.call(this);
       }
       console.log(_this, k); // => undefined
-    };for (var k in kv) {
+    };
+    for (var k in kv) {
       _loop(k);
     }
   }
@@ -25,7 +26,8 @@ function WithCurlyBraces() {
         return foo.call(this);
       }
       console.log(_this2, k); // => 777
-    };for (var k in kv) {
+    };
+    for (var k in kv) {
       _loop2(k);
     }
   }