Index: uspace/app/tester/proc/task_anywait.c
===================================================================
--- uspace/app/tester/proc/task_anywait.c	(revision b22b0a94b341e922fce473e92cec4901af1e7086)
+++ uspace/app/tester/proc/task_anywait.c	(revision b8341bc21ab560e485c8aac4f5a0d1473851664c)
@@ -102,5 +102,6 @@
 	int rc;
 
-	task_set_event_handler(task_event_handler);
+	rc = task_register_event_handler(task_event_handler);
+	TASSERT(rc == EOK);
 
 	TPRINTF("1 exit only\n");