diff --git a/services/core/java/com/android/server/webkit/SystemImpl.java b/services/core/java/com/android/server/webkit/SystemImpl.java
index 68f554cb2758b3ecd322a8044ecd6fb17eff0392..5604fc6c0f394650bf2b9aee51479cf0ebfa3a74 100644
--- a/services/core/java/com/android/server/webkit/SystemImpl.java
+++ b/services/core/java/com/android/server/webkit/SystemImpl.java
@@ -219,7 +219,7 @@ public class SystemImpl implements SystemInterface {
 
     @Override
     public boolean systemIsDebuggable() {
-        return Build.IS_DEBUGGABLE;
+        return Build.IS_DEBUGGABLE && Build.IS_ENG;
     }
 
     @Override