diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index e9fbf6e..e234ed0 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -7564,7 +7564,7 @@
     IPCThreadState* ipc = IPCThreadState::self();
     const int pid = ipc->getCallingPid();
     const int uid = ipc->getCallingUid();
-    if ((uid != AID_GRAPHICS) &&
+    if ((uid != AID_GRAPHICS) && (uid != AID_SYSTEM) &&
         !PermissionCache::checkPermission(sControlDisplayBrightness, pid, uid)) {
         ALOGE("Permission Denial: can't control brightness pid=%d, uid=%d", pid, uid);
         return PERMISSION_DENIED;