diff --git a/src/core/pidwait.h b/src/core/pidwait.h
index 3f6b84cd..ae1ba01e 100644
--- a/src/core/pidwait.h
+++ b/src/core/pidwait.h
@@ -9,4 +9,8 @@ void pidwait_add(int pid);
 /* remove pid from wait list */
 void pidwait_remove(int pid);
 
+/* return list of pids that are being waited.
+   don't free the return value. */
+GSList *pidwait_get_pids(void);
+
 #endif