diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c627d7e..9ff23cf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -215,6 +215,7 @@ jobs:
           source autobahn/bin/activate
           pip install autobahntestsuite
           cd nim-ws
+          chmod +x ./scripts/start_server.sh
           ./scripts/start_server.sh
           cd autobahn
           wstest --mode fuzzingclient --spec fuzzingclient.json