diff --git a/editions/tw5.com/tiddlers/filters/syntax/FilterRun.tid b/editions/tw5.com/tiddlers/filters/syntax/FilterRun.tid
index 640891906..e3843b492 100644
--- a/editions/tw5.com/tiddlers/filters/syntax/FilterRun.tid
+++ b/editions/tw5.com/tiddlers/filters/syntax/FilterRun.tid
@@ -11,7 +11,7 @@ type: text/vnd.tiddlywiki
   |
   '"' [:{/'anything but "'/}] '"'
   |
-  "'" [:{/"anything but '"/}] '"'
+  "'" [:{/"anything but '"/}] "'"
 )
 """/>