diff --git a/ts-json-schema-generator.ts b/ts-json-schema-generator.ts
index 580df176f..5fe311ff0 100644
--- a/ts-json-schema-generator.ts
+++ b/ts-json-schema-generator.ts
@@ -41,7 +41,7 @@ const args = new Command()
     )
     .option(
         "--additional-properties",
-        "Allow additional properties for objects with no index signature (default: false)",
+        "Allow additional properties for objects with no index signature",
         false
     )
     .version(pkg.version)