diff --git a/clearml/backend_api/session/session.py b/clearml/backend_api/session/session.py
index 4e27f63f..e08d4a7b 100644
--- a/clearml/backend_api/session/session.py
+++ b/clearml/backend_api/session/session.py
@@ -243,7 +243,7 @@ class Session(TokenManager):
             def_method = str(self.config.get("api.http.default_method", None)).strip()
             if def_method.upper() not in ("GET", "POST", "PUT"):
                 raise ValueError(
-                    "api.http.default_method variable must be 'get' or 'post' (any case is allowed)."
+                    "api.http.default_method variable must be 'get', 'post' or 'put' (any case is allowed)."
                 )
             Request.def_method = def_method
             Request._method = Request.def_method