diff --git a/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-context.html b/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-context.html
index cef84e87c8ea..1f91cd461a97 100644
--- a/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-context.html
+++ b/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-context.html
@@ -28,8 +28,8 @@
     %MAPPINGS%
   </script>
   <script src="_karma_webpack_/runtime.js" crossorigin="anonymous"></script>
-  <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous"></script>
   <script src="_karma_webpack_/polyfills-es5.js" crossorigin="anonymous" nomodule></script>
+  <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous"></script>
   <!-- Dynamically replaced with <script> tags -->
   %SCRIPTS%
   <script src="_karma_webpack_/styles.js" crossorigin="anonymous"></script>
diff --git a/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-debug.html b/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-debug.html
index 93739d39b7cf..8c3fe313059d 100644
--- a/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-debug.html
+++ b/packages/angular_devkit/build_angular/src/angular-cli-files/plugins/karma-debug.html
@@ -29,8 +29,8 @@
     %MAPPINGS%
   </script>
   <script src="_karma_webpack_/runtime.js" crossorigin="anonymous"></script>
-  <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous"></script>
   <script src="_karma_webpack_/polyfills-es5.js" crossorigin="anonymous" nomodule></script>
+  <script src="_karma_webpack_/polyfills.js" crossorigin="anonymous"></script>
   <!-- Dynamically replaced with <script> tags -->
   %SCRIPTS%
   <script src="_karma_webpack_/styles.js" crossorigin="anonymous"></script>