diff --git a/GHood.cabal b/GHood.cabal
--- a/GHood.cabal
+++ b/GHood.cabal
@@ -1,5 +1,5 @@
 Name:            GHood
-Version:         0.0.5
+Version:         0.0.6
 License:         BSD3
 License-file:    LICENSE
 Copyright:
diff --git a/src/Debug/Observe.hs b/src/Debug/Observe.hs
--- a/src/Debug/Observe.hs
+++ b/src/Debug/Observe.hs
@@ -79,6 +79,7 @@
 import System.IO
 import System.Cmd
 import Data.Maybe
+import Control.Applicative
 import Control.Monad
 import Data.Array as Array
 import Data.List