diff --git a/src/compiler/glsl/test_optpass.cpp b/src/compiler/glsl/test_optpass.cpp
index 5fd1b2b6757..1fd9db102c6 100644
--- a/src/compiler/glsl/test_optpass.cpp
+++ b/src/compiler/glsl/test_optpass.cpp
@@ -42,6 +42,7 @@
 #include "program.h"
 #include "ir_reader.h"
 #include "standalone_scaffolding.h"
+#include "main/mtypes.h"
 
 using namespace std;