diff --git a/MultiServer.py b/MultiServer.py
index 77839110a3..52c80c5540 100644
--- a/MultiServer.py
+++ b/MultiServer.py
@@ -1364,7 +1364,10 @@ class CommandProcessor(metaclass=CommandMeta):
                         argname += "=" + parameter.default
                 argtext += argname
                 argtext += " "
-            doctext = '\n    '.join(inspect.getdoc(method).split('\n'))
+            method_doc = inspect.getdoc(method)
+            if method_doc is None:
+                method_doc = "(missing help text)"
+            doctext = "\n    ".join(method_doc.split("\n"))
             s += f"{self.marker}{command} {argtext}\n    {doctext}\n"
         return s