diff --git a/apps/terminal/backends/command/serializers.py b/apps/terminal/backends/command/serializers.py
index 15efe6113..83b9d55d2 100644
--- a/apps/terminal/backends/command/serializers.py
+++ b/apps/terminal/backends/command/serializers.py
@@ -47,5 +47,5 @@ class SessionCommandSerializer(SimpleSessionCommandSerializer):
 
     def validate_system_user(self, value):
         if len(value) > 64:
-            value = pretty_string(value, 32)
+            value = pretty_string(value, 64)
         return value