diff --git a/libs/gl-client-py/glclient/__init__.py b/libs/gl-client-py/glclient/__init__.py
index 2e54ba66d..1b7d26c96 100644
--- a/libs/gl-client-py/glclient/__init__.py
+++ b/libs/gl-client-py/glclient/__init__.py
@@ -397,7 +397,7 @@ def pay(
         self,
         bolt11: str,
         amount_msat: Optional[clnpb.Amount] = None,
-        retry_for: int = 0,
+        retry_for: Optional[int] = None,
         maxfee: Optional[clnpb.Amount] = None,
         maxfeepercent: Optional[float] = None,
     ) -> clnpb.PayResponse: