diff --git a/build.js b/build.js
index 21db015..f7c7db5 100644
--- a/build.js
+++ b/build.js
@@ -1,5 +1,7 @@
 const fs = require('fs');
-const readline = require('readline')
+const readline = require('readline');
+//const src_dir = 'src';
+const build_dir = 'build';
 
 const files = ["src/index.html",
 			   "src/about.html",
@@ -26,8 +28,8 @@ files.forEach( file => {
 		}
 		if (match_picture) {
 			const picture_src = match_picture[1].split('/').slice(1).join('/');
-			ensureDirectoryExists('build/' + picture_src);
-			fs.cp(match_picture[1], 'build/' + picture_src, { recursive: false }, (err) => {
+			ensureDirectoryExists(build_dir + '/' + picture_src);
+			fs.cp(match_picture[1], build_dir + '/' + picture_src, { recursive: false }, (err) => {
 				if (err) throw err;
 			});
 			line = line.replace(re_picture, "<img src=\'/" + picture_src + "\' \>");
@@ -36,8 +38,8 @@ files.forEach( file => {
     });
     
     rl.on('close', () => {
-		ensureDirectoryExists('build/' + file.split('/').slice(1).join('/')); // all this quatch is to remove the /src/.
-		fs.writeFileSync('build/' + file.split('/').slice(1).join('/'), file_buffer, 'utf8');
+		ensureDirectoryExists(build_dir + '/' + file.split('/').slice(1).join('/')); // all this quatch is to remove the /src/.
+		fs.writeFileSync(build_dir + '/' + file.split('/').slice(1).join('/'), file_buffer, 'utf8');
     });
 });