diff --git a/stack.sh b/stack.sh
index a7891af..e66f71d 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1723,7 +1723,7 @@
     # launch keystone and wait for it to answer before continuing
     screen_it key "cd $KEYSTONE_DIR && $KEYSTONE_DIR/bin/keystone-all --config-file $KEYSTONE_CONF $KEYSTONE_LOG_CONFIG -d --debug"
     echo "Waiting for keystone to start..."
-    if ! timeout $SERVICE_TIMEOUT sh -c "while http_proxy= wget -O- $KEYSTONE_AUTH_PROTOCOL://$SERVICE_HOST:$KEYSTONE_API_PORT/v2.0/ 2>&1 | grep -q 'refused'; do sleep 1; done"; then
+    if ! timeout $SERVICE_TIMEOUT sh -c "while ! http_proxy= wget -O- $KEYSTONE_AUTH_PROTOCOL://$SERVICE_HOST:$KEYSTONE_API_PORT/v2.0/ 2>&1 | grep -q '200 OK'; do sleep 1; done"; then
       echo "keystone did not start"
       exit 1
     fi