diff --git a/src/GF/Text/Lexing.hs b/src/GF/Text/Lexing.hs
index 38018ff54..70bb4e434 100644
--- a/src/GF/Text/Lexing.hs
+++ b/src/GF/Text/Lexing.hs
@@ -37,7 +37,7 @@ appUnlexer f = unlines . map (f . words) . lines
wrapHTML :: String -> String
wrapHTML = unlines . tag . intersperse "
" . lines where
- tag ss = "":"