diff --git a/gateway.py b/gateway.py
index 94de6c2..bbe03f3 100644
--- a/gateway.py
+++ b/gateway.py
@@ -381,6 +381,11 @@ class Gateway():
   #===============================================================================
   def free_memcfg(self):
     if self.memcfg:
+      if os.name != "nt":
+        try:
+          self.memcfg.unlink()
+        except Exception:
+          pass
       try:
         self.memcfg.close() # https://docs.python.org/3/library/multiprocessing.shared_memory.html
       except Exception: