diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index a92571a34556..cf14db975da0 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -3,6 +3,8 @@
 
 #ifdef __KERNEL__
 
+#include <linux/workqueue.h>
+
 struct rpc_pipe_msg {
 	struct list_head list;
 	void *data;