diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 5b3c477..39d54a2 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3491,7 +3491,7 @@
 
     uint32_t flags = 0;
 
-    const uint32_t what = s.what;
+    const uint64_t what = s.what;
     bool geometryAppliesWithResize =
             what & layer_state_t::eGeometryAppliesWithResize;