diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index e11890a..0fb1e62 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -210,7 +210,7 @@
 				 * not the directory has been modified
 				 * during the copy operation.
 				 */
-				unsigned long version = filp->f_version;
+				u64 version = filp->f_version;
 
 				error = filldir(dirent, de->name,
 						de->name_len,