diff --git a/include/linux/signal.h b/include/linux/signal.h
index fcd2b14b19327a9765ff6e9e9a7e45e6cafa0f71..29a68ac7af834a80a71212f1e7ea0a050df30c0d 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -7,6 +7,8 @@
 #ifdef __KERNEL__
 #include <linux/list.h>
 
+struct task_struct;
+
 /* for sysctl */
 extern int print_fatal_signals;
 /*