diff --git a/src/Yam/App.hs b/src/Yam/App.hs
--- a/src/Yam/App.hs
+++ b/src/Yam/App.hs
@@ -19,6 +19,7 @@
   , registerEventHandler'
   , evalPropOrDefault
   , evalProp
+  , enable
   ) where
 
 import           Yam.App.Context
diff --git a/yam-app.cabal b/yam-app.cabal
--- a/yam-app.cabal
+++ b/yam-app.cabal
@@ -1,5 +1,5 @@
 name:                yam-app
-version:             0.1.0.2
+version:             0.1.3
 synopsis:            Yam App
 description:         Base Module for Yam
 homepage:            https://github.com/leptonyu/yam/yam-app#readme