diff --git a/kernel/signal.c b/kernel/signal.c
index 8054dd4..4333b6d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -998,6 +998,7 @@
 {
 	return sigismember(&tsk->pending.signal, SIGKILL);
 }
+EXPORT_SYMBOL(__fatal_signal_pending);
 
 /*
  * Must be called under rcu_read_lock() or with tasklist_lock read-held.