diff --git a/cogl/cogl-matrix.h b/cogl/cogl-matrix.h
index 897711c75..09fb0097f 100644
--- a/cogl/cogl-matrix.h
+++ b/cogl/cogl-matrix.h
@@ -27,6 +27,8 @@
 #ifndef __COGL_MATRIX_H
 #define __COGL_MATRIX_H
 
+#include <cogl/cogl-defines.h>
+
 #ifdef COGL_HAS_GTYPE_SUPPORT
 #include <glib-object.h>
 #endif /* COGL_HAS_GTYPE_SUPPORT */