diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 39112a0..cbc3cd7 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -137,7 +137,7 @@
 			      (unsigned long)sizeof(struct name))
 #define VMCOREINFO_OFFSET(name, field) \
 	vmcoreinfo_append_str("OFFSET(%s.%s)=%lu\n", #name, #field, \
-			      (unsigned long)&(((struct name *)0)->field))
+			      (unsigned long)offsetof(struct name, field))
 #define VMCOREINFO_LENGTH(name, value) \
 	vmcoreinfo_append_str("LENGTH(%s)=%lu\n", #name, (unsigned long)value)
 #define VMCOREINFO_NUMBER(name) \