diff --git a/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIImplementation.java b/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIImplementation.java
index fd8f76c30..347658583 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIImplementation.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIImplementation.java
@@ -130,16 +130,17 @@ public class UIImplementation {
   }
 
   /**
-   * Invoked when native view that corresponds to a root node has its size changed.
+   * Invoked when native view that corresponds to a root node, or acts as a root view (ie. Modals)
+   * has its size changed.
    */
-  public void updateRootNodeSize(
-      int rootViewTag,
+  public void updateNodeSize(
+      int nodeViewTag,
       int newWidth,
       int newHeight,
       EventDispatcher eventDispatcher) {
-    ReactShadowNode rootCSSNode = mShadowNodeRegistry.getNode(rootViewTag);
-    rootCSSNode.setStyleWidth(newWidth);
-    rootCSSNode.setStyleHeight(newHeight);
+    ReactShadowNode cssNode = mShadowNodeRegistry.getNode(nodeViewTag);
+    cssNode.setStyleWidth(newWidth);
+    cssNode.setStyleHeight(newHeight);
 
     // If we're in the middle of a batch, the change will automatically be dispatched at the end of
     // the batch. As all batches are executed as a single runnable on the event queue this should
diff --git a/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java b/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
index 5ec09e13c..2cfe95de2 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/uimanager/UIManagerModule.java
@@ -192,7 +192,7 @@ public class UIManagerModule extends ReactContextBaseJavaModule implements
             new Runnable() {
               @Override
               public void run() {
-                updateRootNodeSize(tag, width, height);
+                updateNodeSize(tag, width, height);
               }
             });
         }
@@ -206,10 +206,10 @@ public class UIManagerModule extends ReactContextBaseJavaModule implements
     mUIImplementation.removeRootView(rootViewTag);
   }
 
-  private void updateRootNodeSize(int rootViewTag, int newWidth, int newHeight) {
+  public void updateNodeSize(int nodeViewTag, int newWidth, int newHeight) {
     getReactApplicationContext().assertOnNativeModulesQueueThread();
 
-    mUIImplementation.updateRootNodeSize(rootViewTag, newWidth, newHeight, mEventDispatcher);
+    mUIImplementation.updateNodeSize(nodeViewTag, newWidth, newHeight, mEventDispatcher);
   }
 
   @ReactMethod
diff --git a/ReactAndroid/src/main/java/com/facebook/react/views/modal/ReactModalHostView.java b/ReactAndroid/src/main/java/com/facebook/react/views/modal/ReactModalHostView.java
index ddf821d45..3d03bd8b3 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/views/modal/ReactModalHostView.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/views/modal/ReactModalHostView.java
@@ -264,6 +264,21 @@ public class ReactModalHostView extends ViewGroup implements LifecycleEventListe
       super(context);
     }
 
+    @Override
+    protected void onSizeChanged(final int w, final int h, int oldw, int oldh) {
+      super.onSizeChanged(w, h, oldw, oldh);
+      if (getChildCount() > 0) {
+        ((ReactContext) getContext()).runOnNativeModulesQueueThread(
+          new Runnable() {
+            @Override
+            public void run() {
+              ((ReactContext) getContext()).getNativeModule(UIManagerModule.class)
+                .updateNodeSize(getChildAt(0).getId(), w, h);
+            }
+          });
+      }
+    }
+
     @Override
     public boolean onInterceptTouchEvent(MotionEvent event) {
       mJSTouchDispatcher.handleTouchEvent(event, getEventDispatcher());