diff --git a/HSlippyMap.cabal b/HSlippyMap.cabal
--- a/HSlippyMap.cabal
+++ b/HSlippyMap.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                HSlippyMap
-version:             3.0
+version:             3.0.1
 synopsis:            OpenStreetMap Slippy Map
 -- description:
 homepage:            https://github.com/apeyroux/HSlippyMap
diff --git a/HSlippyMap.hs b/HSlippyMap.hs
--- a/HSlippyMap.hs
+++ b/HSlippyMap.hs
@@ -1,8 +1,10 @@
 module HSlippyMap (
-    Tile, tlat, tlong, tx, ty, tz,
-    tilesFromBBox,
-    tileFromLatLong,
-    tileFromXY
+  Tile (..),
+  Lat, Long,
+  X, Y, ZLevel,
+  tilesFromBBox,
+  tileFromLatLong,
+  tileFromXY
 ) where
 
 type Lat = Float