diff --git a/webpack.config.js b/webpack.config.js
index 53e98b066805d..04b7172e1496e 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -142,9 +142,7 @@ const config = {
 		// Create RTL files with a -rtl suffix
 		new WebpackRTLPlugin( {
 			suffix: '-rtl',
-			minify: {
-				safe: true,
-			},
+			minify: process.env.NODE_ENV === 'production' ? { safe: true } : false,
 		} ),
 		new webpack.LoaderOptionsPlugin( {
 			minimize: process.env.NODE_ENV === 'production',