diff --git a/lib/flags/general.js b/lib/flags/general.js
index 4b5942d..a8c89e3 100644
--- a/lib/flags/general.js
+++ b/lib/flags/general.js
@@ -119,14 +119,14 @@ Typically used for language-specific require hooks`,
     },
     'run-dev': {
       alias: 'd',
-      desc:
-        'An alias for --debug --devtool eval-cheap-module-source-map --output-pathinfo',
+      desc: `An alias for --debug --devtool eval-cheap-module-source-map
+--mode development --output-pathinfo`,
       type: 'boolean',
     },
     'run-prod': {
       alias: 'p',
-      desc:
-        'An alias for --optimize-minimize, which also defines process.env.NODE_ENV="production"',
+      desc: `An alias for --optimize-minimize --mode production, and defines
+process.env.NODE_ENV="production"`,
       type: 'boolean',
     },
     version: {