-

diff --git a/lib/pegTokenizer.pegjs.txt b/lib/pegTokenizer.pegjs.txt
index 221347a..de8cb01 100644
--- a/lib/pegTokenizer.pegjs.txt
+++ b/lib/pegTokenizer.pegjs.txt
@@ -1159,7 +1159,9 @@ nowiki_content
            })
        )* {
             // return nowiki tags as well?
-            return tu.flattenStringlist(ts);
+            return tu.flattenStringlist(ts).map(function(s) {
+				return (typeof s === 'string') ? s.replace(/\s+/g, ' ') : s;
+			});
           }
 
 /* Generic XML-like tags

See https://phabricator.wikimedia.org/T107622