diff --git a/src/basic/missing_fs.h b/src/basic/missing_fs.h
index 79c1620e83..cc43d7c277 100644
--- a/src/basic/missing_fs.h
+++ b/src/basic/missing_fs.h
@@ -52,11 +52,6 @@
 #define EXT4_IOC_RESIZE_FS _IOW('f', 16, __u64)
 #endif
 
-/* Not exposed yet. Defined at fs/cifs/cifsglob.h */
-#ifndef CIFS_MAGIC_NUMBER
-#define CIFS_MAGIC_NUMBER 0xFF534D42
-#endif
-
 /* linux/nsfs.h */
 #ifndef NS_GET_NSTYPE /* d95fa3c76a66b6d76b1e109ea505c55e66360f3c (4.11) */
 #define NS_GET_NSTYPE _IO(0xb7, 0x3)
diff --git a/src/basic/missing_magic.h b/src/basic/missing_magic.h
index e7466cb6bc..8408c4d6e6 100644
--- a/src/basic/missing_magic.h
+++ b/src/basic/missing_magic.h
@@ -37,3 +37,8 @@
 #ifndef XFS_SB_MAGIC
 #define XFS_SB_MAGIC 0x58465342
 #endif
+
+/* Not exposed yet. Defined at fs/cifs/cifsglob.h */
+#ifndef CIFS_MAGIC_NUMBER
+#define CIFS_MAGIC_NUMBER 0xFF534D42
+#endif