diff -r c76d50dac855 MoinMoin/parser/text_moin_wiki.py
--- a/MoinMoin/parser/text_moin_wiki.py	Mon Jan 19 01:20:04 2009 +0100
+++ b/MoinMoin/parser/text_moin_wiki.py	Mon Jan 19 02:06:28 2009 +0100
@@ -573,7 +573,8 @@
 
     def _tt_bt_repl(self, word, groups):
         """Handle backticked inline code."""
-        tt_bt_text = groups.get('tt_bt_text', '')
+        tt_bt_text = groups.get('tt_bt_text', '') or " "
+        # backtick class make backtick markup when code has this class 
         return (self.formatter.code(1, css="backtick") +
                 self.formatter.text(tt_bt_text) +
                 self.formatter.code(0))