diff --git a/codex.cabal b/codex.cabal
--- a/codex.cabal
+++ b/codex.cabal
@@ -1,5 +1,5 @@
 name:                codex
-version:             0.5.1.0
+version:             0.5.1.2
 synopsis:            A ctags file generator for cabal project dependencies.
 description:
   This tool download and cache the source code of packages in your local hackage,
diff --git a/src/Codex.hs b/src/Codex.hs
--- a/src/Codex.hs
+++ b/src/Codex.hs
@@ -2,7 +2,7 @@
 module Codex (Codex(..), defaultStackOpts, defaultTagsFileName, Verbosity, module Codex) where
 
 #if !MIN_VERSION_base(4,8,0)
-import Control.Applicative ((<$>))
+import Control.Applicative ((<$>), (<*))
 import Data.Traversable (traverse)
 #endif