diff --git a/core/servers/smb/SMBserver.py b/core/servers/smb/SMBserver.py
index 0c7f47c..e2656e8 100644
--- a/core/servers/smb/SMBserver.py
+++ b/core/servers/smb/SMBserver.py
@@ -62,7 +62,7 @@ class SMBserver(ConfigWatcher):
         
         except socketerror as e:
             if "Address already in use" in e:
-                shutdown("\n[-] Unable to start SMB server on port {}: port already in use".format(listenPort))
+                shutdown("\n[-] Unable to start SMB server on port {}: port already in use".format(self.smb_port))
 
     def configureLogging(self, formatter):
         #yes I know this looks awful, yuck