diff --git a/src/renderers/shared/stack/reconciler/instantiateReactComponent.js b/src/renderers/shared/stack/reconciler/instantiateReactComponent.js
index 6a8ed0a54ffb1..202768d8bba18 100644
--- a/src/renderers/shared/stack/reconciler/instantiateReactComponent.js
+++ b/src/renderers/shared/stack/reconciler/instantiateReactComponent.js
@@ -15,6 +15,7 @@ var ReactCompositeComponent = require('ReactCompositeComponent');
 var ReactEmptyComponent = require('ReactEmptyComponent');
 var ReactHostComponent = require('ReactHostComponent');
 
+var getNextDebugID = require('getNextDebugID');
 var invariant = require('invariant');
 var warning = require('warning');
 
@@ -56,8 +57,6 @@ function isInternalComponentType(type) {
   );
 }
 
-var nextDebugID = 1;
-
 /**
  * Given a ReactNode, create an instance that will actually be mounted.
  *
@@ -125,7 +124,7 @@ function instantiateReactComponent(node, shouldHaveDebugID) {
   instance._mountImage = null;
 
   if (__DEV__) {
-    instance._debugID = shouldHaveDebugID ? nextDebugID++ : 0;
+    instance._debugID = shouldHaveDebugID ? getNextDebugID() : 0;
   }
 
   // Internal instances should fully constructed at this point, so they should
diff --git a/src/shared/utils/getNextDebugID.js b/src/shared/utils/getNextDebugID.js
new file mode 100644
index 0000000000000..6e7ecb43b84a6
--- /dev/null
+++ b/src/shared/utils/getNextDebugID.js
@@ -0,0 +1,21 @@
+/**
+ * Copyright 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule getNextDebugID
+ * @flow
+ */
+
+'use strict';
+
+var nextDebugID = 1;
+
+function getNextDebugID(): number {
+  return nextDebugID++;
+}
+
+module.exports = getNextDebugID;
diff --git a/src/test/ReactShallowRenderer.js b/src/test/ReactShallowRenderer.js
index 1517d49cff824..ee50d9d6efc66 100644
--- a/src/test/ReactShallowRenderer.js
+++ b/src/test/ReactShallowRenderer.js
@@ -20,17 +20,16 @@ var ReactReconciler = require('ReactReconciler');
 var ReactUpdates = require('ReactUpdates');
 
 var emptyObject = require('emptyObject');
+var getNextDebugID = require('getNextDebugID');
 var invariant = require('invariant');
 
-var nextDebugID = 1;
-
 class NoopInternalComponent {
   constructor(element) {
     this._renderedOutput = element;
     this._currentElement = element;
 
     if (__DEV__) {
-      this._debugID = nextDebugID++;
+      this._debugID = getNextDebugID();
     }
   }
   mountComponent() {}
@@ -50,7 +49,7 @@ class NoopInternalComponent {
 var ShallowComponentWrapper = function(element) {
   // TODO: Consolidate with instantiateReactComponent
   if (__DEV__) {
-    this._debugID = nextDebugID++;
+    this._debugID = getNextDebugID();
   }
 
   this.construct(element);