diff --git a/include/linux/magic.h b/include/linux/magic.h
index a9c6567..9d713c0 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -14,6 +14,7 @@
 #define ISOFS_SUPER_MAGIC	0x9660
 #define JFFS2_SUPER_MAGIC	0x72b6
 #define KVMFS_SUPER_MAGIC	0x19700426
+#define ANON_INODE_FS_MAGIC	0x09041934
 
 #define MINIX_SUPER_MAGIC	0x137F		/* original minix fs */
 #define MINIX_SUPER_MAGIC2	0x138F		/* minix fs, 30 char names */