diff --git a/fs/cramfs/uncompress.c b/fs/cramfs/uncompress.c
index 5034365b06a8..8def89f2c438 100644
--- a/fs/cramfs/uncompress.c
+++ b/fs/cramfs/uncompress.c
@@ -19,6 +19,7 @@
 #include <linux/errno.h>
 #include <linux/vmalloc.h>
 #include <linux/zlib.h>
+#include <linux/cramfs_fs.h>
 
 static z_stream stream;
 static int initialized;