diff --git a/pyrdp/core/mitm.py b/pyrdp/core/mitm.py
index 1036def18..250cf7b7b 100644
--- a/pyrdp/core/mitm.py
+++ b/pyrdp/core/mitm.py
@@ -25,7 +25,7 @@ def __init__(self, config: MITMConfig):
         self.config = config
 
     def buildProtocol(self, addr):
-        sessionID = f"{namesgenerator.get_random_name()}_{random.randrange(100000,999999)}"
+        sessionID = f"{namesgenerator.get_random_name()}_{random.randrange(1000000,9999999)}"
 
         # mainLogger logs in a file and stdout
         mainlogger = logging.getLogger(LOGGER_NAMES.MITM_CONNECTIONS)