diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index 9a958f68b73..742d57a12ff 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -294,6 +294,7 @@ namespace ts {
                 "classic": ModuleResolutionKind.Classic,
             }),
             description: Diagnostics.Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6,
+            paramType: Diagnostics.STRATEGY,
         },
         {
             name: "allowUnusedLabels",
diff --git a/src/compiler/diagnosticMessages.json b/src/compiler/diagnosticMessages.json
index 440812664d8..559206ab098 100644
--- a/src/compiler/diagnosticMessages.json
+++ b/src/compiler/diagnosticMessages.json
@@ -2464,6 +2464,10 @@
         "category": "Message",
         "code": 6038
     },
+    "STRATEGY": {
+        "category": "Message",
+        "code": 6039
+    },
     "Compilation complete. Watching for file changes.": {
         "category": "Message",
         "code": 6042
@@ -2863,7 +2867,7 @@
     "Element implicitly has an 'any' type because index expression is not of type 'number'.": {
         "category": "Error",
         "code": 7015
-    }, 
+    },
     "Index signature of object type implicitly has an 'any' type.": {
         "category": "Error",
         "code": 7017