diff --git a/tests/testlibrary.c b/tests/testlibrary.c
index 2f450e75f..c1df93c8c 100644
--- a/tests/testlibrary.c
+++ b/tests/testlibrary.c
@@ -889,7 +889,7 @@ run_test_subprocess (char **argv,
   g_test_message ("Spawning %s", argv_str);
 
   if (flags & RUN_TEST_SUBPROCESS_NO_CAPTURE)
-    g_spawn_sync (NULL, argv, NULL, G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | G_SPAWN_STDERR_TO_DEV_NULL, NULL, NULL, NULL, NULL, &status, &error);
+    g_spawn_sync (NULL, argv, NULL, G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL, NULL, NULL, NULL, NULL, &status, &error);
   else
     g_spawn_sync (NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, &output, &errors, &status, &error);