diff --git a/Tools/compiler/doc/astdocgen.py b/Tools/compiler/doc/astdocgen.py
index c593ce1..41e8c4b 100644
--- a/Tools/compiler/doc/astdocgen.py
+++ b/Tools/compiler/doc/astdocgen.py
@@ -20,7 +20,7 @@
             print "\\lineiii{%s}{}{}" % node.name
             
         for arg in node.argnames[1:]:
-            print "\\lineiii{}{%s}{}" % arg
+            print "\\lineiii{}{\\member{%s}}{}" % arg
         print "\\hline", "\n"
     print "\\end{longtableiii}"