diff --git a/include/linux/sched.h b/include/linux/sched.h
index 670b89a..46d6f5b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -753,6 +753,7 @@
 struct audit_context;		/* See audit.c */
 struct mempolicy;
 struct pipe_inode_info;
+struct uts_namespace;
 
 enum sleep_type {
 	SLEEP_NORMAL,