diff --git a/cmds/flatland/Main.cpp b/cmds/flatland/Main.cpp
index ec1e543..c47b0c8 100644
--- a/cmds/flatland/Main.cpp
+++ b/cmds/flatland/Main.cpp
@@ -16,6 +16,7 @@
 
 #define ATRACE_TAG ATRACE_TAG_ALWAYS
 
+#include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
 #include <gui/SurfaceControl.h>
 #include <gui/GLConsumer.h>