diff --git a/glib/grefcount.h b/glib/grefcount.h
index dfeed619f..b1c70b5aa 100644
--- a/glib/grefcount.h
+++ b/glib/grefcount.h
@@ -23,6 +23,7 @@
 #error "Only <glib.h> can be included directly."
 #endif
 
+#include <glib/gatomic.h>
 #include <glib/gtypes.h>
 
 G_BEGIN_DECLS