diff --git a/core/java/android/app/IActivityManager.aidl b/core/java/android/app/IActivityManager.aidl
index 93dfc79109a62..f37ca61ba69fb 100644
--- a/core/java/android/app/IActivityManager.aidl
+++ b/core/java/android/app/IActivityManager.aidl
@@ -461,7 +461,7 @@ interface IActivityManager {
     @UnsupportedAppUsage
     Rect getTaskBounds(int taskId);
     @UnsupportedAppUsage
-    boolean setProcessMemoryTrimLevel(in String process, int uid, int level);
+    boolean setProcessMemoryTrimLevel(in String process, int userId, int level);
 
 
     // Start of L transactions