diff --git a/src/line_gap.sml b/src/line_gap.sml
index d915924..8b76a02 100644
--- a/src/line_gap.sml
+++ b/src/line_gap.sml
@@ -1230,8 +1230,8 @@ struct
         , line
         , leftLines
         , rightLines
-        , textLength
-        , lineLength
+        , newTextLength
+        , newLineLength
         )
     end