diff --git a/gio/tests/gsubprocess-testprog.c b/gio/tests/gsubprocess-testprog.c
index 417c0289c..05fc526f3 100644
--- a/gio/tests/gsubprocess-testprog.c
+++ b/gio/tests/gsubprocess-testprog.c
@@ -275,7 +275,7 @@ sleep_and_kill (int argc, char **argv)
   /* Run sleep "forever" in a shell; this will trigger PTRACE_EVENT_EXEC */
   g_ptr_array_add (args, g_strdup ("sh"));
   g_ptr_array_add (args, g_strdup ("-c"));
-  g_ptr_array_add (args, g_strdup ("sleep infinity"));
+  g_ptr_array_add (args, g_strdup ("exec sleep infinity"));
   g_ptr_array_add (args, NULL);
   launcher = g_subprocess_launcher_new (G_SUBPROCESS_FLAGS_NONE);
   proc = g_subprocess_launcher_spawnv (launcher, (const gchar **) args->pdata, &local_error);