diff --git a/libiptc/linux_list.h b/libiptc/linux_list.h
index abdcf88..3a51185 100644
--- a/libiptc/linux_list.h
+++ b/libiptc/linux_list.h
@@ -1,5 +1,5 @@
-#ifndef _LINUX_LIST_H
-#define _LINUX_LIST_H
+#ifndef _IPTC_LIST_H
+#define _IPTC_LIST_H
 
 #undef offsetof
 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
diff --git a/libiptc/linux_stddef.h b/libiptc/linux_stddef.h
index 56416f1..57758c9 100644
--- a/libiptc/linux_stddef.h
+++ b/libiptc/linux_stddef.h
@@ -1,5 +1,5 @@
-#ifndef _LINUX_STDDEF_H
-#define _LINUX_STDDEF_H
+#ifndef _IPTC_STDDEF_H
+#define _IPTC_STDDEF_H
 
 #undef NULL
 #if defined(__cplusplus)