diff --git a/_config.yml b/_config.yml
index e432efd..3e5d3e5 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,9 +1,9 @@
 exclude:
+  - app/
   - CHANGELOG.md
   - Gemfile
   - Gemfile.lock
   - LICENSE.md
-  - Main.hs
   - licensor.cabal
   - package.yaml
   - src/
diff --git a/licensor.cabal b/licensor.cabal
index a4e025f..8f05c5d 100644
--- a/licensor.cabal
+++ b/licensor.cabal
@@ -4,7 +4,7 @@ cabal-version: 1.12
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: f9f3cf444be81006218fdda188775e6515f7b3bb5352a2a6ed45106318dd54bf
+-- hash: 28712dcff95a982ef86182ec93effb3c20abb4e12bb800d4c02803aee6bc0400
 
 name:           licensor
 version:        0.3.0
@@ -48,6 +48,8 @@ executable licensor
   main-is: Main.hs
   other-modules:
       Paths_licensor
+  hs-source-dirs:
+      app
   ghc-options: -Wall -threaded -rtsopts -with-rtsopts=-N
   build-depends:
       Cabal >=1.22 && <2.1
diff --git a/package.yaml b/package.yaml
index 96ec830..c7d246a 100644
--- a/package.yaml
+++ b/package.yaml
@@ -36,10 +36,14 @@ library:
     - process
 
 executable:
+  source-dirs:
+    app
   main:
     Main.hs
   dependencies:
     - cmdargs >= 0.10 && < 0.11
     - licensor
   ghc-options:
-    - -threaded -rtsopts -with-rtsopts=-N
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N