diff --git a/packages/webpack-cli/lib/utils/cli-flags.js b/packages/webpack-cli/lib/utils/cli-flags.js
index 195330f92e3..3f1f0ed26ea 100644
--- a/packages/webpack-cli/lib/utils/cli-flags.js
+++ b/packages/webpack-cli/lib/utils/cli-flags.js
@@ -92,7 +92,6 @@ const core = [
         usage: '--color',
         type: Boolean,
         negative: true,
-        defaultValue: true,
         description: 'Enable/Disable colors on console',
     },
     {
@@ -156,7 +155,6 @@ const core = [
         usage: '--devtool <value>',
         type: String,
         alias: 'd',
-        defaultValue: undefined,
         group: BASIC_GROUP,
         description: 'Determine source maps to use',
         link: 'https://webpack.js.org/configuration/devtool/#devtool',