diff --git a/server/tsuserver.py b/server/tsuserver.py
index 3ccebec5b..6f898dcb2 100644
--- a/server/tsuserver.py
+++ b/server/tsuserver.py
@@ -70,7 +70,7 @@ def __init__(self, protocol: AOProtocol = None,
         self.major_version = 3
         self.minor_version = 4
         self.segment_version = 'post2'
-        self.internal_version = 'M220830a'
+        self.internal_version = '220830a'
         version_string = self.get_version_string()
         self.software = 'TsuserverDR {}'.format(version_string)
         self.version = 'TsuserverDR {} ({})'.format(version_string, self.internal_version)