diff --git a/Graphics/Diagram/Gif.hs b/Graphics/Diagram/Gif.hs
index 6079ce8..b34a45b 100644
--- a/Graphics/Diagram/Gif.hs
+++ b/Graphics/Diagram/Gif.hs
@@ -36,4 +36,4 @@ gifDiag p xs =
 -- |Same as gifDiag, except that it takes a string containing the
 -- mesh file content instead of the the points.
 gifDiagS :: DiagProp -> B.ByteString -> [(Diagram Cairo R2, GifDelay)]
-gifDiagS p = gifDiag p . filterValidPT p . meshToArr
+gifDiagS p = gifDiag p . filterValidPT p . meshVertices
diff --git a/Graphics/Diagram/Gtk.hs b/Graphics/Diagram/Gtk.hs
index 32e7f19..b0a9e0c 100644
--- a/Graphics/Diagram/Gtk.hs
+++ b/Graphics/Diagram/Gtk.hs
@@ -61,8 +61,8 @@ diagS :: DiagProp -> B.ByteString -> Diagram Cairo R2
 diagS p mesh =
   diag p diagAlgos
     . fmap (filterValidPT p)
-    . (\x -> if null x then [meshToArr mesh] else x)
-    . facesToArr
+    . (\x -> if null x then [meshVertices mesh] else x)
+    . meshFaceVertices
     $ mesh
 
 
@@ -72,7 +72,7 @@ diagTreeS :: DiagProp -> B.ByteString -> Diagram Cairo R2
 diagTreeS p mesh =
   diag p diagTreAlgos
     . fmap (filterValidPT p)
-    . (\x -> if null x then [meshToArr mesh] else x)
-    . facesToArr
+    . (\x -> if null x then [meshVertices mesh] else x)
+    . meshFaceVertices
     $ mesh
 
diff --git a/Parser/Meshparser.hs b/Parser/Meshparser.hs
index bee7263..2f4cbec 100644
--- a/Parser/Meshparser.hs
+++ b/Parser/Meshparser.hs
@@ -11,17 +11,17 @@ import Diagrams.TwoD.Types
 
 -- |Convert a text String with multiple vertices and faces into
 -- a list of vertices, ordered by the faces specification.
-facesToArr :: B.ByteString -> [[P2]]
-facesToArr str = fmap (fmap (\y -> meshToArr str !! (fromIntegral y - 1)))
-                      (meshFaces str)
+meshFaceVertices :: B.ByteString -> [[P2]]
+meshFaceVertices str = fmap (fmap (\y -> meshVertices str !! (y - 1)))
+                            (meshFaces str)
 
 
 -- |Convert a text String with multiple vertices into
 -- an array of float tuples.
-meshToArr :: B.ByteString -- ^ the string to convert
+meshVertices :: B.ByteString -- ^ the string to convert
           -> [P2]         -- ^ the resulting vertice table
-meshToArr =
-  fmap p2
+meshVertices
+  = fmap p2
     . rights
     . fmap (parseOnly parseVertice)
     . B.lines
@@ -35,7 +35,7 @@ parseVertice =
     <*> (many' space *> double)
 
 
-parseFace :: Parser [Integer]
+parseFace :: (Integral a) => Parser [a]
 parseFace = char 'f' *> many1' (many' space *> decimal)