diff --git a/Makefile b/Makefile
index e173a9ef..53a3ce99 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 ELECTRON_PACKAGER=./node_modules/.bin/electron-packager
 ELECTRON_BUILDER=./node_modules/.bin/electron-builder
 ELECTRON_OSX_SIGN=./node_modules/.bin/electron-osx-sign
-ELECTRON_IGNORE=$(shell node -e "console.log(require('./package.json').packageIgnore.join('|'))")
+ELECTRON_IGNORE=$(shell node scripts/packageignore.js)
 ELECTRON_VERSION=0.36.11
 ETCHER_VERSION=$(shell node -e "console.log(require('./package.json').version)")
 APPLICATION_NAME=$(shell node -e "console.log(require('./package.json').displayName)")
diff --git a/package.json b/package.json
index 6b6f803d..bbb453a2 100644
--- a/package.json
+++ b/package.json
@@ -21,25 +21,16 @@
   "packageIgnore": [
     "LICENSE",
     "Makefile",
-    "(.*)\\.md",
+    "(.*)\\.pem",
+    "(.*)\\.log",
+    "assets/osx",
     "appveyor.yml",
     "bower.json",
     "gulpfile.js",
     "screenshot.png",
     "tests",
     "etcher-release",
-    "lib/scss",
-    "node_modules/electron-mocha",
-    "node_modules/electron-builder",
-    "node_modules/electron-osx-sign",
-    "node_modules/angular-mocks",
-    "node_modules/browserify",
-    "node_modules/gulp*",
-    "node_modules/jshint-stylish",
-    "node_modules/mochainon",
-    "node_modules/vinyl-*",
-    "node_modules/rindle",
-    "node_modules/tmp"
+    "lib/scss"
   ],
   "builder": {
     "win": {
diff --git a/scripts/packageignore.js b/scripts/packageignore.js
new file mode 100644
index 00000000..3c951c59
--- /dev/null
+++ b/scripts/packageignore.js
@@ -0,0 +1,37 @@
+/**
+ * This script is in charge of building a regex of files to ignore
+ * when packaging for `electron-packager`'s `ignore` option.
+ *
+ * See https://github.com/electron-userland/electron-packager/blob/master/usage.txt
+ *
+ * Usage:
+ *
+ *   node scripts/packageignore.js
+ */
+
+const _ = require('lodash');
+const fs = require('fs');
+const path = require('path');
+const packageJSON = require('../package.json');
+
+const topLevelFiles = fs.readdirSync(path.join(__dirname, '..'));
+
+console.log(_.flatten([
+  packageJSON.packageIgnore,
+
+  // Development dependencies
+  _.map(_.keys(packageJSON.devDependencies), function(dependency) {
+    return path.join('node_modules', dependency);
+  }),
+
+  // Top level hidden files
+  _.filter(topLevelFiles, function(file) {
+    return _.startsWith(file, '.');
+  }),
+
+  // Top level markdown files
+  _.filter(topLevelFiles, function(file) {
+    return _.endsWith(file, '.md');
+  })
+
+]).join('|'));