diff --git a/tests/test-serve b/tests/test-serve
--- a/tests/test-serve
+++ b/tests/test-serve
@@ -41,7 +41,7 @@ echo % With -v and -p HGPORT2
 hgserve -p "$HGPORT2"
 
 echo '% With -v and -p http (should fail)'
-KILLQUIETLY=Y hgserve -p http
+KILLQUIETLY=Y hgserve -p http; KILLQUIETLY=N
 
 echo % With --prefix foo
 hgserve --prefix foo