diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
index 2d79ea849575..4d100b64e6e1 100644
--- a/fs/incfs/vfs.c
+++ b/fs/incfs/vfs.c
@@ -15,6 +15,7 @@
 #include <linux/pagemap.h>
 #include <linux/parser.h>
 #include <linux/seq_file.h>
+#include <linux/backing-dev-defs.h>
 
 #include <uapi/linux/incrementalfs.h>