diff --git a/examples/server/api_like_OAI.py b/examples/server/api_like_OAI.py
index 179a57416..4049e1f4a 100755
--- a/examples/server/api_like_OAI.py
+++ b/examples/server/api_like_OAI.py
@@ -103,7 +103,7 @@ def make_postData(body, chat=False, stream=False):
         postData["stop"] = [stop_token]
     else:
         postData["stop"] = []
-    if(is_present(body, "stop")): postData["stop"] += body["stop"]
+    if(is_present(body, "stop")): postData["stop"] += body["stop"] or []
     postData["n_keep"] = -1
     postData["stream"] = stream