diff --git a/extensions/typescript-basics/schemas/tsconfig.schema.json b/extensions/typescript-basics/schemas/tsconfig.schema.json
index 3abb77503f6..f5a082e1f2b 100644
--- a/extensions/typescript-basics/schemas/tsconfig.schema.json
+++ b/extensions/typescript-basics/schemas/tsconfig.schema.json
@@ -1,4 +1,5 @@
 {
+	"allowTrailingCommas": true,
 	"title": "JSON schema for the TypeScript compiler's configuration file",
 	"type": "object",
 	"default": {