diff --git a/fs/libfs.c b/fs/libfs.c
index 28d6f35..217896c 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -7,6 +7,7 @@
 #include <linux/export.h>
 #include <linux/pagemap.h>
 #include <linux/slab.h>
+#include <linux/cred.h>
 #include <linux/mount.h>
 #include <linux/vfs.h>
 #include <linux/quotaops.h>