diff --git a/src/client/__init__.py b/src/client/__init__.py
index 91e3e84b..d44f2aca 100644
--- a/src/client/__init__.py
+++ b/src/client/__init__.py
@@ -282,7 +282,12 @@ def __init__(
             raise ValueError('You can only pass one parameter: environment or url. Both are now set.')
         if url is not None:
             self.url = url[:-1] if url.endswith('/') else url
-            self._platform_url = self.url
+            for env in TolokaClient.Environment:
+                if self.url == env.value:
+                    self._platform_url = env.platform_url
+                    break
+            else:
+                self._platform_url = self.url
         else:
             if not isinstance(environment, TolokaClient.Environment):
                 environment = TolokaClient.Environment[environment.upper()]