diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index 3c6a86134e..e9f9ff210a 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -272,7 +272,7 @@ namespace ts {
                 "es2017": ScriptTarget.ES2017,
                 "esnext": ScriptTarget.ESNext,
             }),
-            description: Diagnostics.Specify_ECMAScript_target_version_Colon_ES3_default_ES5_or_ES2015,
+            description: Diagnostics.Specify_ECMAScript_target_version_Colon_ES3_default_ES5_ES2015_ES2016_ES2017_or_ESNEXT,
             paramType: Diagnostics.VERSION,
         },
         {
diff --git a/src/compiler/diagnosticMessages.json b/src/compiler/diagnosticMessages.json
index 5f49c54a2a..4d42c77e56 100644
--- a/src/compiler/diagnosticMessages.json
+++ b/src/compiler/diagnosticMessages.json
@@ -2473,7 +2473,7 @@
         "category": "Message",
         "code": 6012
     },
-    "Specify ECMAScript target version: 'ES3' (default), 'ES5', or 'ES2015'": {
+    "Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'": {
         "category": "Message",
         "code": 6015
     },