diff --git a/src/Handler/Utils/LMS.hs b/src/Handler/Utils/LMS.hs
index f5f91e969..0376866cb 100644
--- a/src/Handler/Utils/LMS.hs
+++ b/src/Handler/Utils/LMS.hs
@@ -141,7 +141,7 @@ maxLmsUserIdentRetries = 27
 randomText :: MonadIO m => String -> Int -> m Text
 randomText extra n = fmap pack . evalRandTIO . replicateM n $ uniform range
   where
-    num_letters = ['2'..'9'] ++ ['a'..'h'] ++ ['j','k'] ++ ['m'..'z'] -- users have trouble distinguishing 1/l and 0/O so we eliminate these; apc has trouble distinguishing i/j
+    num_letters = ['2'..'9'] ++ ['a'..'h'] ++ 'k' : ['m'..'z'] -- users have trouble distinguishing 1/l and 0/O so we eliminate these; apc has trouble distinguishing i/j and read "ji", "jf" as ligatures "ij", "fj" so we eliminate j as well 
     range       = extra ++ num_letters
 
 --TODO: consider using package elocrypt for user-friendly passwords here, licence requires mentioning of author, etc. though