diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index fe0031d1f2afd..1e64e3a687e04 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -112,6 +112,7 @@ namespace ts {
             })),
             category: Diagnostics.Watch_and_Build_Modes,
             description: Diagnostics.Specify_how_the_TypeScript_watch_mode_works,
+            defaultValueDescription: WatchFileKind.UseFsEvents,
         },
         {
             name: "watchDirectory",
@@ -123,6 +124,7 @@ namespace ts {
             })),
             category: Diagnostics.Watch_and_Build_Modes,
             description: Diagnostics.Specify_how_directories_are_watched_on_systems_that_lack_recursive_file_watching_functionality,
+            defaultValueDescription: WatchDirectoryKind.UseFsEvents,
         },
         {
             name: "fallbackPolling",
@@ -134,6 +136,7 @@ namespace ts {
             })),
             category: Diagnostics.Watch_and_Build_Modes,
             description: Diagnostics.Specify_what_approach_the_watcher_should_use_if_the_system_runs_out_of_native_file_watchers,
+            defaultValueDescription: PollingWatchKind.PriorityInterval,
         },
         {
             name: "synchronousWatchDirectory",
@@ -589,7 +592,8 @@ namespace ts {
             affectsEmit: true,
             affectsSemanticDiagnostics: true,
             category: Diagnostics.Emit,
-            description: Diagnostics.Specify_emit_Slashchecking_behavior_for_imports_that_are_only_used_for_types
+            description: Diagnostics.Specify_emit_Slashchecking_behavior_for_imports_that_are_only_used_for_types,
+            defaultValueDescription: ImportsNotUsedAsValues.Remove,
         },
         {
             name: "downlevelIteration",