diff --git a/tests/player.stdio.js b/bin/player.stdio.js
similarity index 90%
rename from tests/player.stdio.js
rename to bin/player.stdio.js
index 9b71e6f..4379e82 100644
--- a/tests/player.stdio.js
+++ b/bin/player.stdio.js
@@ -8,7 +8,7 @@ const fs = require('fs')
 const minimist = require('minimist')
 
 const CheapGlkOte = require('../src/')
-const { handlers } = require('../src/stdio')
+const { handlers } = require('./stdio')
 
 const formats = [
   {
@@ -46,8 +46,8 @@ const format = formats.find(x =>
   x.extensions.test(storyfile))
 
 if (!format) {
-  console.error('Unknown storyfile format')
-  return
+  console.error('Unknown storyfile format.')
+  process.exit(0)
 }
 
 const { glkInterface, sendFn } = CheapGlkOte(handlers)
diff --git a/src/stdio.js b/bin/stdio.js
similarity index 100%
rename from src/stdio.js
rename to bin/stdio.js
diff --git a/package.json b/package.json
index 81de266..f9d9eb7 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "interactive-fiction"
   ],
   "main": "src/index.js",
+  "bin": "bin/player.stdio.js",
   "repository": "https://github.com/He4eT/cheap-glkote",
   "bugs": "https://github.com/He4eT/cheap-glkote/issues",
   "dependencies": {},
@@ -21,7 +22,7 @@
     "mute-stream": "0.0.8"
   },
   "scripts": {
-    "play": "node ./tests/player.stdio.js",
+    "play": "node ./bin/player.stdio.js",
     "test": "./tests/runtests.sh"
   }
 }
diff --git a/tests/runtests.sh b/tests/runtests.sh
index 64947a7..099935a 100755
--- a/tests/runtests.sh
+++ b/tests/runtests.sh
@@ -2,4 +2,4 @@
 
 cd "$(dirname "$0")"
 
-node player.stdio.js praxix.z5 < <(sleep 1 && echo 'all')
+node ../bin/player.stdio.js praxix.z5 < <(sleep 1 && echo 'all')