diff --git a/packages/core/src/render3/i18n/i18n_parse.ts b/packages/core/src/render3/i18n/i18n_parse.ts
index 854408c1e0a..f4203b953a6 100644
--- a/packages/core/src/render3/i18n/i18n_parse.ts
+++ b/packages/core/src/render3/i18n/i18n_parse.ts
@@ -22,7 +22,6 @@ import {TNode, TNodeType} from '../interfaces/node';
 import {SanitizerFn} from '../interfaces/sanitization';
 import {HEADER_OFFSET, LView, TView} from '../interfaces/view';
 import {getCurrentParentTNode, getCurrentTNode, setCurrentTNode} from '../state';
-import {attachDebugGetter} from '../util/debug_utils';
 
 import {i18nCreateOpCodesToString, i18nRemoveOpCodesToString, i18nUpdateOpCodesToString, icuCreateOpCodesToString} from './i18n_debug';
 import {addTNodeAndUpdateInsertBeforeIndex} from './i18n_insert_before_index';
@@ -52,6 +51,23 @@ function replaceNgsp(value: string): string {
   return value.replace(NGSP_UNICODE_REGEXP, ' ');
 }
 
+/**
+ * Patch a `debug` property getter on top of the existing object.
+ *
+ * NOTE: always call this method with `ngDevMode && attachDebugObject(...)`
+ *
+ * @param obj Object to patch
+ * @param debugGetter Getter returning a value to patch
+ */
+function attachDebugGetter<T>(obj: T, debugGetter: (this: T) => any): void {
+  if (ngDevMode) {
+    Object.defineProperty(obj, 'debug', {get: debugGetter, enumerable: false});
+  } else {
+    throw new Error(
+        'This method should be guarded with `ngDevMode` so that it can be tree shaken in production!');
+  }
+}
+
 /**
  * Create dynamic nodes from i18n translation block.
  *
diff --git a/packages/core/src/render3/util/debug_utils.ts b/packages/core/src/render3/util/debug_utils.ts
deleted file mode 100644
index 00e66e0ace7..00000000000
--- a/packages/core/src/render3/util/debug_utils.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-/**
- * @license
- * Copyright Google LLC All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-/**
- * Patch a `debug` property getter on top of the existing object.
- *
- * NOTE: always call this method with `ngDevMode && attachDebugObject(...)`
- *
- * @param obj Object to patch
- * @param debugGetter Getter returning a value to patch
- */
-export function attachDebugGetter<T>(obj: T, debugGetter: (this: T) => any): void {
-  if (ngDevMode) {
-    Object.defineProperty(obj, 'debug', {get: debugGetter, enumerable: false});
-  } else {
-    throw new Error(
-        'This method should be guarded with `ngDevMode` so that it can be tree shaken in production!');
-  }
-}