diff --git a/src/xpra/server/proxy/proxy_instance_process.py b/src/xpra/server/proxy/proxy_instance_process.py
index 72b02eda25..ee2a0ac5e9 100644
--- a/src/xpra/server/proxy/proxy_instance_process.py
+++ b/src/xpra/server/proxy/proxy_instance_process.py
@@ -218,7 +218,7 @@ def setproctitle(self, title):
     def run(self):
         log("ProxyProcess.run() pid=%s, uid=%s, gid=%s", os.getpid(), getuid(), getgid())
         self.setproctitle("Xpra Proxy Instance for %s" % self.server_conn)
-        if POSIX and (os.getuid()!=self.uid or os.getgid()!=self.gid):
+        if POSIX and (getuid()!=self.uid or getgid()!=self.gid):
             #do we need a valid XDG_RUNTIME_DIR for the socket-dir?
             username = get_username_for_uid(self.uid)
             socket_dir = osexpand(self.socket_dir, username, self.uid, self.gid)
diff --git a/src/xpra/server/proxy/proxy_server.py b/src/xpra/server/proxy/proxy_server.py
index 546b41c1eb..f28aaebaa7 100644
--- a/src/xpra/server/proxy/proxy_server.py
+++ b/src/xpra/server/proxy/proxy_server.py
@@ -533,7 +533,7 @@ def get_info(self, proto, *_args):
                     break
             if sessions:
                 uid, gid = sessions[:2]
-                if not POSIX or (uid==os.getuid() and gid==os.getgid()):
+                if not POSIX or (uid==getuid() and gid==getgid()):
                     self.reap()
                     i = 0
                     for p,v in self.processes.items():