diff --git a/run-command.c b/run-command.c
index 757f263cd6..24eaad5c66 100644
--- a/run-command.c
+++ b/run-command.c
@@ -725,7 +725,7 @@ error:
 int finish_async(struct async *async)
 {
 #ifdef NO_PTHREADS
-	return wait_or_whine(async->pid, "child process", 0);
+	return wait_or_whine(async->pid, "child process");
 #else
 	void *ret = (void *)(intptr_t)(-1);