diff --git a/scripts/build.js b/scripts/build.js
index 6e0909ddb85d..b737414d8d03 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -28,7 +28,6 @@ const mkdirp = require('mkdirp');
 const babel = require('@babel/core');
 const chalk = require('chalk');
 const micromatch = require('micromatch');
-const prettier = require('prettier');
 const {getPackages, adjustToTerminalWidth, OK} = require('./buildUtils');
 const browserBuild = require('./browserBuild');
 
@@ -44,10 +43,6 @@ const INLINE_REQUIRE_BLACKLIST = /packages\/expect|(jest-(circus|diff|get-type|j
 
 const transformOptions = require('../babel.config.js');
 
-const prettierConfig = prettier.resolveConfig.sync(__filename);
-prettierConfig.trailingComma = 'none';
-prettierConfig.parser = 'babel';
-
 function getPackageName(file) {
   return path.relative(PACKAGES_DIR, file).split(path.sep)[0];
 }
@@ -156,10 +151,15 @@ function buildFile(file, silent) {
       });
     }
 
+    options.sourceFileName = path.relative(path.dirname(destPath), file);
+
     const transformed = babel.transformFileSync(file, options);
-    const prettyCode = prettier.format(transformed.code, prettierConfig);
+    transformed.code +=
+      '\n//# sourceMappingURL=' + path.basename(destPath + '.map');
+
+    delete transformed.map.sourcesContent;
 
-    fs.writeFileSync(destPath, prettyCode);
+    fs.writeFileSync(destPath, transformed.code);
     fs.writeFileSync(destPath + '.map', JSON.stringify(transformed.map));
 
     silent ||