diff --git a/xpra/platform/win32/dotxpra.py b/xpra/platform/win32/dotxpra.py
index 85a7a838ba..19468c3710 100644
--- a/xpra/platform/win32/dotxpra.py
+++ b/xpra/platform/win32/dotxpra.py
@@ -42,7 +42,7 @@ def norm_socket_paths(self, local_display_name: str):
         return [self.socket_path(local_display_name)]
 
     def socket_path(self, local_display_name: str):
-        return norm_makepath(None, local_display_name)
+        return norm_makepath("", local_display_name)
 
     def get_display_state(self, display: str):
         return self.get_server_state(PIPE_PREFIX+display)