diff --git a/Text/HeX/Math.hs b/Text/HeX/Math.hs
index 37e357f..f253933 100644
--- a/Text/HeX/Math.hs
+++ b/Text/HeX/Math.hs
@@ -89,4 +89,4 @@ arrayLine expr =
   sepBy1 (mconcat <$> many (notFollowedBy endLine >> expr)) (char '&')
 
 arrayLines :: HeX Doc -> HeX [[Doc]]
-arrayLines expr = sepBy1 (arrayLine expr) endLine
+arrayLines expr = sepEndBy1 (arrayLine expr) endLine