diff --git a/bin/check-deps.js b/bin/check-deps.js
index 4b3f48ef..6f212295 100755
--- a/bin/check-deps.js
+++ b/bin/check-deps.js
@@ -3,49 +3,52 @@
 var fs = require('fs')
 var cp = require('child_process')
 
-var BUILT_IN_DEPS = ['child_process', 'electron', 'fs', 'os', 'path', 'screen']
+var BUILT_IN_DEPS = ['child_process', 'electron', 'fs', 'os', 'path']
 var EXECUTABLE_DEPS = ['gh-release', 'standard']
 
 main()
 
-// Scans our codebase and package.json for missing or unused dependencies
-// Process returns 0 on success, prints a message and returns 1 on failure
+// Scans codebase for missing or unused dependencies. Exits with code 0 on success.
 function main () {
   if (process.platform === 'win32') {
-    console.log('Sorry, check-deps only works on Mac and Linux')
+    console.error('Sorry, check-deps only works on Mac and Linux')
     return
   }
 
-  var jsDeps = findJSDeps()
+  var usedDeps = findUsedDeps()
   var packageDeps = findPackageDeps()
 
-  var missingDeps = jsDeps.filter((dep) =>
-    packageDeps.indexOf(dep) < 0 &&
-    BUILT_IN_DEPS.indexOf(dep) < 0)
-  var unusedDeps = packageDeps.filter((dep) =>
-    jsDeps.indexOf(dep) < 0 &&
-    EXECUTABLE_DEPS.indexOf(dep) < 0)
+  var missingDeps = usedDeps.filter(
+    (dep) => !packageDeps.includes(dep) && !BUILT_IN_DEPS.includes(dep)
+  )
+  var unusedDeps = packageDeps.filter(
+    (dep) => !usedDeps.includes(dep) && !EXECUTABLE_DEPS.includes(dep)
+  )
 
-  if (missingDeps.length > 0) console.log('Missing package dependencies: ' + missingDeps)
-  if (unusedDeps.length > 0) console.log('Unused package dependencies: ' + unusedDeps)
-
-  if (missingDeps.length + unusedDeps.length > 0) process.exit(1)
-
-  console.log('Lookin good!')
+  if (missingDeps.length > 0) {
+    console.error('Missing package dependencies: ' + missingDeps)
+  }
+  if (unusedDeps.length > 0) {
+    console.error('Unused package dependencies: ' + unusedDeps)
+  }
+  if (missingDeps.length + unusedDeps.length > 0) {
+    process.exitCode = 1
+  }
 }
 
-// Finds all dependencies, required, optional, or dev, in package.json
+// Finds all dependencies specified in `package.json`
 function findPackageDeps () {
   var pkg = JSON.parse(fs.readFileSync('package.json', 'utf8'))
-  var requiredDeps = Object.keys(pkg.dependencies)
+
+  var deps = Object.keys(pkg.dependencies)
   var devDeps = Object.keys(pkg.devDependencies)
   var optionalDeps = Object.keys(pkg.optionalDependencies)
 
-  return [].concat(requiredDeps, devDeps, optionalDeps)
+  return [].concat(deps, devDeps, optionalDeps)
 }
 
-// Finds all dependencies required() in the code
-function findJSDeps () {
+// Finds all dependencies that used with `require()`
+function findUsedDeps () {
   var stdout = cp.execSync('./bin/list-deps.sh')
   return stdout.toString().trim().split('\n')
 }
diff --git a/bin/cmd.js b/bin/cmd.js
index 3723bbb8..e18f3268 100755
--- a/bin/cmd.js
+++ b/bin/cmd.js
@@ -6,5 +6,5 @@ var path = require('path')
 
 var child = cp.spawn(electron, [path.join(__dirname, '..')], {stdio: 'inherit'})
 child.on('close', function (code) {
-  process.exit(code)
+  process.exitCode = code
 })