diff --git a/src/Parser.elm b/src/Parser.elm
index 5a8b03a..08aae8f 100644
--- a/src/Parser.elm
+++ b/src/Parser.elm
@@ -801,7 +801,7 @@ mapChompedString =
 
 
 
-{-| Chomp one character if it passes the test.
+{-| Chomp one character if it passes the test. Dead end if it does not pass the test.
 
     chompUpper : Parser ()
     chompUpper =