diff --git a/exercises/rna-transcription/src/DNA.hs b/exercises/rna-transcription/src/DNA.hs
index c50d40d5a..3f00ad67b 100644
--- a/exercises/rna-transcription/src/DNA.hs
+++ b/exercises/rna-transcription/src/DNA.hs
@@ -1,6 +1,4 @@
 module DNA (toRNA) where
 
--- | if string contains invalid character, return Nothing
--- | if string contains only valid nucleotides, return Just transcription
 toRNA :: String -> Maybe String
 toRNA = undefined