diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 953f17a3a827b..f9e84114a7da8 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -9883,9 +9883,12 @@ public final class ViewRootImpl implements ViewParent,
     }
 
     void checkThread() {
-        if (mThread != Thread.currentThread()) {
+        Thread current = Thread.currentThread();
+        if (mThread != current) {
             throw new CalledFromWrongThreadException(
-                    "Only the original thread that created a view hierarchy can touch its views.");
+                    "Only the original thread that created a view hierarchy can touch its views."
+                            + " Expected: " + mThread.getName()
+                            + " Calling: " + current.getName());
         }
     }