diff --git a/container_of.h b/container_of.h
index 2abb332..0bf1ed0 100644
--- a/container_of.h
+++ b/container_of.h
@@ -3,7 +3,7 @@
 
 #ifndef container_of
 #define container_of(ptr, type, member)                                        \
-	(type *)((char *)(ptr) - (char *)&((type *)0)->member)
+	(type *)((char *)(ptr) - offsetof(type, member))
 #endif
 
 #endif