diff --git a/core/requires.js b/core/requires.js
index be26951b0..223bc7d6d 100644
--- a/core/requires.js
+++ b/core/requires.js
@@ -76,7 +76,7 @@ goog.require('Blockly.FieldVariable');
 
 // If you'd like to include the date field in your build, you will also need to
 // include the closure library as a build dependency.  You can do so by running:
-//     gulp build-core --closure-library
+//     gulp build-compressed --closure-library
 // Be sure to also include "google-closure-library" to your list of
 // devDependencies.
 // goog.require('Blockly.FieldDate');
diff --git a/gulpfile.js b/gulpfile.js
index b3930c226..63dfbba93 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -164,13 +164,13 @@ function compile(compilerOptions, opt_verbose, opt_warnings_as_error) {
  * This task builds Blockly's core files.
  *     blockly_compressed.js
  */
-gulp.task('build-core', function (cb) {
+gulp.task('build-compressed', function (cb) {
   const defines = 'Blockly.VERSION="' + packageJson.version + '"';
   const srcs = ['core/**/**/*.js'];
   if (argv.closureLibrary) {
     // If you require the google closure library, you can include it in your
     // build by running:
-    //     gulp build-core --closure-library
+    //     gulp build-compressed --closure-library
     // You will also need to include the "google-closure-library" in your list
     // of devDependencies.
     console.log('Including the google-closure-library in your build.');
@@ -317,6 +317,22 @@ gulp.task('build-dart', function() {
   return buildGenerator('dart', 'Dart');
 });
 
+/**
+ * This tasks builds all the generators:
+ *     javascript_compressed.js
+ *     python_compressed.js
+ *     php_compressed.js
+ *     lua_compressed.js
+ *     dart_compressed.js
+ */
+gulp.task('build-generators', gulp.parallel(
+  'build-javascript',
+  'build-python',
+  'build-php',
+  'build-lua',
+  'build-dart'
+));
+
 /**
  * This task builds Blockly's uncompressed file.
  *     blockly_uncompressed.js
@@ -427,6 +443,18 @@ gulp.task('build-langfiles', function(done) {
   done();
 });
 
+/**
+ * This tasks builds Blockly's core files:
+ *     blockly_compressed.js
+ *     blocks_compressed.js
+ *     blockly_uncompressed.js
+ */
+gulp.task('build-core', gulp.parallel(
+  'build-compressed',
+  'build-blocks',
+  'build-uncompressed'
+));
+
 /**
  * This task builds all of Blockly:
  *     blockly_compressed.js
@@ -441,13 +469,7 @@ gulp.task('build-langfiles', function(done) {
  */
 gulp.task('build', gulp.parallel(
   'build-core',
-  'build-blocks',
-  'build-javascript',
-  'build-python',
-  'build-php',
-  'build-lua',
-  'build-dart',
-  'build-uncompressed',
+  'build-generators',
   'build-langfiles'
 ));
 
diff --git a/package.json b/package.json
index 0912d394a..28e145a44 100644
--- a/package.json
+++ b/package.json
@@ -19,9 +19,11 @@
   "scripts": {
     "build": "gulp build",
     "build:blocks": "gulp build-blocks",
+    "build:compressed":"gulp build-compressed",
     "build:core": "gulp build-core",
-    "build:debug": "gulp build-core --verbose --strict",
+    "build:debug": "gulp build-compressed --verbose --strict",
     "build:debug:log": "npm run build:debug > build-debug.log 2>&1 && tail -3 build-debug.log",
+    "build:generators": "gulp build-generators",
     "build:langfiles": "gulp build-langfiles",
     "build:uncompressed": "gulp build-uncompressed",
     "bump": "npm version 3.$(date +'%Y%m%d').0",
diff --git a/tests/scripts/check_metadata.sh b/tests/scripts/check_metadata.sh
index b14394f2d..9b36c4447 100755
--- a/tests/scripts/check_metadata.sh
+++ b/tests/scripts/check_metadata.sh
@@ -21,7 +21,7 @@ ANSI_RESET='\033[0m'
 # Build the compressed files for core and blocks
 echo "Building files"
 npm install
-gulp build-core
+gulp build-compressed
 gulp build-blocks
 
 # GZip them for additional size comparisons