diff --git a/core/include/blue/core/macros.h b/core/include/blue/core/macros.h
index d9c26ca..7932822 100644
--- a/core/include/blue/core/macros.h
+++ b/core/include/blue/core/macros.h
@@ -93,7 +93,7 @@
 	{                                                                      \
 		return b_object_ref(p);                                        \
 	}                                                                      \
-	static inline name *name##_unref(name *p)                              \
+	static inline void name##_unref(name *p)                               \
 	{                                                                      \
 		b_object_unref(p);                                             \
 	}