diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index df87e3b..d127ef4 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3942,7 +3942,9 @@
     mInterceptor->saveSurfaceCreation(layer);
 
     setTransactionFlags(eTransactionNeeded);
-    *outId = layer->sequence;
+    if (outId) {
+        *outId = layer->sequence;
+    }
     return result;
 }