diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index bbd12ca..0000000
--- a/.npmignore
+++ /dev/null
@@ -1,2 +0,0 @@
-tests/**
-sample/**
diff --git a/bin/create-entry-file.js b/bin/create-entry-file.js
index 6c58130..1a81d9d 100755
--- a/bin/create-entry-file.js
+++ b/bin/create-entry-file.js
@@ -7,11 +7,12 @@
 
 'use strict';
 
+const path = require( 'path' );
 const { bundler } = require( '@ckeditor/ckeditor5-dev-utils' );
 const buildConfig = require( '../build-config' );
 
 console.log( 'Creating the entry file...' );
 
-bundler.createEntryFile( 'ckeditor.js', buildConfig );
+bundler.createEntryFile( path.join( 'src', 'ckeditor.js' ), buildConfig );
 
 console.log( 'Done.' );
diff --git a/package.json b/package.json
index e545b53..ead2a8c 100644
--- a/package.json
+++ b/package.json
@@ -10,21 +10,22 @@
     "rich-text editor"
   ],
   "main": "./build/ckeditor.js",
-  "dependencies": {
-    "@ckeditor/ckeditor5-editor-classic": "^0.8.0",
-    "@ckeditor/ckeditor5-essentials": "^0.3.0",
+  "files": [
+    "build"
+  ],
+  "devDependencies": {
     "@ckeditor/ckeditor5-autoformat": "^0.6.0",
     "@ckeditor/ckeditor5-basic-styles": "^0.9.0",
     "@ckeditor/ckeditor5-block-quote": "^0.2.0",
+    "@ckeditor/ckeditor5-dev-utils": "^4.0.0",
+    "@ckeditor/ckeditor5-dev-webpack-plugin": "^2.0.11",
+    "@ckeditor/ckeditor5-editor-classic": "^0.8.0",
+    "@ckeditor/ckeditor5-essentials": "^0.3.0",
     "@ckeditor/ckeditor5-heading": "^0.10.0",
     "@ckeditor/ckeditor5-image": "^0.7.0",
     "@ckeditor/ckeditor5-link": "^0.8.0",
     "@ckeditor/ckeditor5-list": "^0.7.0",
-    "@ckeditor/ckeditor5-paragraph": "^0.9.0"
-  },
-  "devDependencies": {
-    "@ckeditor/ckeditor5-dev-utils": "^4.0.0",
-    "@ckeditor/ckeditor5-dev-webpack-plugin": "^2.0.11",
+    "@ckeditor/ckeditor5-paragraph": "^0.9.0",
     "babel-minify-webpack-plugin": "^0.2.0",
     "css-loader": "^0.28.5",
     "node-sass": "^4.5.3",
@@ -50,6 +51,6 @@
     "create-entry-file": "./bin/create-entry-file.js",
     "build-ckeditor": "./bin/build-ckeditor.sh",
 
-    "preversion": "npm run build; if [ -n \"$(git status ckeditor.js build/ --porcelain)\" ]; then git add -u ckeditor.js build/ && git commit -m 'Internal: Build.'; fi"
+    "preversion": "npm run build; if [ -n \"$(git status src/ckeditor.js build/ --porcelain)\" ]; then git add -u src/ckeditor.js build/ && git commit -m 'Internal: Build.'; fi"
   }
 }
diff --git a/ckeditor.js b/src/ckeditor.js
similarity index 100%
rename from ckeditor.js
rename to src/ckeditor.js
diff --git a/webpack.config.js b/webpack.config.js
index 061845a..d43441e 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -17,7 +17,7 @@ const buildConfig = require( './build-config' );
 module.exports = {
 	devtool: 'source-map',
 
-	entry: path.resolve( __dirname, 'ckeditor.js' ),
+	entry: path.resolve( __dirname, 'src', 'ckeditor.js' ),
 
 	output: {
 		path: path.resolve( __dirname, 'build' ),