diff --git a/app/Main.hs b/app/Main.hs
deleted file mode 100644
--- a/app/Main.hs
+++ /dev/null
@@ -1,6 +0,0 @@
-module Main where
-
-main :: IO ()
-main = putStrLn "include-env"
-
-
diff --git a/include-env.cabal b/include-env.cabal
--- a/include-env.cabal
+++ b/include-env.cabal
@@ -1,7 +1,7 @@
 name:                include-env
-version:             0.1.2.0
+version:             0.1.3.0
 synopsis:            Include the value of an environment variable at compile time
-description:         Embed secrets (e.g. API keys) inside production artifacts without checking them into the repository.
+description:         Embed secrets (e.g. API keys) inside production artifacts at compile time.
 homepage:            https://github.com/unfoldml/include-env
 license:             BSD3
 license-file:        LICENSE
@@ -21,14 +21,6 @@
   exposed-modules:     IncludeEnv.TH
   build-depends:       base >= 4.7 && < 5
                      , template-haskell >= 2.14
-
-executable include-env
-  default-language:    Haskell2010
-  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
-  hs-source-dirs:      app
-  main-is:             Main.hs
-  build-depends:       base
-                     , include-env
 
 source-repository head
   type:     git
diff --git a/src/IncludeEnv/TH.hs b/src/IncludeEnv/TH.hs
--- a/src/IncludeEnv/TH.hs
+++ b/src/IncludeEnv/TH.hs
@@ -29,9 +29,11 @@
 import Language.Haskell.TH.Lib (valD)
 
 
--- | Include the value of an environment variable at compile time
+-- | Include the value of an environment variable at compile time.
 --
--- A fresh variable is declared each time this is computation is evaluated
+-- A fresh variable of type `String` is declared each time this is computation is evaluated.
+--
+-- Note : will crash with `error` if the environment variable is not found.
 includeEnv :: String -- ^ name of environment variable to be looked up
            -> String -- ^ name of new value
            -> Q [Dec]