diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 9e8dda8389bff..bdaac4bf1dabd 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -4279,7 +4279,8 @@ public final class ViewRootImpl implements ViewParent,
 
             // Enter touch mode on down or scroll.
             final int action = event.getAction();
-            if (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL) {
+            if (event.isFromSource(InputDevice.SOURCE_TOUCHSCREEN)
+                    && (action == MotionEvent.ACTION_DOWN || action == MotionEvent.ACTION_SCROLL)) {
                 ensureTouchMode(true);
             }