diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index 40df260..45340a1 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -194,6 +194,7 @@
     if (inFormat != format) return true;
     if (inLayerCount != layerCount) return true;
     if ((usage & inUsage) != inUsage) return true;
+    if ((usage & USAGE_PROTECTED) != (inUsage & USAGE_PROTECTED)) return true;
     return false;
 }