1 files changed, 3 insertions, 3 deletions
diff --git a/Data/ConfigManager.hs b/Data/ConfigManager.hs
index 37da8b6..a13457c 100644
--- a/Data/ConfigManager.hs
+++ b/Data/ConfigManager.hs
@@ -34,7 +34,6 @@ module Data.ConfigManager
   ) where
 
 import Prelude hiding (lookup)
-import Text.Read (readMaybe)
 
 import Data.Text (Text)
 import qualified Data.Text as T
@@ -42,6 +41,7 @@ import qualified Data.HashMap.Strict as M
 
 import qualified Data.ConfigManager.Reader as R
 import Data.ConfigManager.Types
+import Data.ConfigManager.Instances ()
 
 -- | Load a 'Config' from a given 'FilePath'.
 
@@ -50,13 +50,13 @@ readConfig = R.readConfig Required
 
 -- | Lookup for the value associated to a name.
 
-lookup :: Read a => Name -> Config -> Either Text a
+lookup :: Configured a => Name -> Config -> Either Text a
 lookup name config =
   case M.lookup name (hashMap config) of
     Nothing ->
       Left . T.concat $ ["Value not found for Key ", name]
     Just value ->
-      case readMaybe . T.unpack $ value of
+      case convert value of
         Nothing -> Left . T.concat $ ["Reading error for key ", name]
         Just result -> Right result