diff --git a/include/gint/defs/call.h b/include/gint/defs/call.h
index 5a2f2bf..1dd3c7f 100644
--- a/include/gint/defs/call.h
+++ b/include/gint/defs/call.h
@@ -12,6 +12,7 @@
 #define GINT_DEFS_CALL
 
 #include <stdbool.h>
+#include <gint/defs/attributes.h>
 
 #ifdef __cplusplus
 extern "C" {