diff --git a/html-test/ref/Bug548.html b/html-test/ref/Bug548.html
index 1a906cc385..cff64ca2d0 100644
--- a/html-test/ref/Bug548.html
+++ b/html-test/ref/Bug548.html
@@ -533,7 +533,7 @@
>S1 ('MetaSel (' ('Just "unwrapArrow") 'NoSourceUnpackednessS1 ('MetaSel (' ('Just "unwrapArrow") 'NoSourceUnpackednessMyGADTCons :: a -> Int -> MyGADT ( -> MyGADT (Maybe String