diff --git a/fs/locks.c b/fs/locks.c
index 6970f55..44b6da0 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -2853,7 +2853,7 @@
 	}
 	if (inode) {
 		/* userspace relies on this representation of dev_t */
-		seq_printf(f, "%d %02x:%02x:%ld ", fl_pid,
+		seq_printf(f, "%d %02x:%02x:%lu ", fl_pid,
 				MAJOR(inode->i_sb->s_dev),
 				MINOR(inode->i_sb->s_dev), inode->i_ino);
 	} else {