diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index 3bf72932..5b4ab930 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -1,6 +1,7 @@
 #ifndef INTEL_BATCHBUFFER_H
 #define INTEL_BATCHBUFFER_H
 
+#include <assert.h>
 #include "intel_bufmgr.h"
 #include "intel_reg.h"