diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 971b8138eb..8552286763 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3502,6 +3502,7 @@ JSON with Comments:
   - ".sublime-workspace"
   - ".sublime_metrics"
   - ".sublime_session"
+  - ".tsconfig.json"
   filenames:
   - ".babelrc"
   - ".devcontainer.json"
diff --git a/samples/JSON with Comments/jest.tsconfig.json b/samples/JSON with Comments/jest.tsconfig.json
new file mode 100644
index 0000000000..1a7bcab03c
--- /dev/null
+++ b/samples/JSON with Comments/jest.tsconfig.json	
@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+      "jsx": "react",
+      "target": "ES2019",
+      "emitDecoratorMetadata": false // coverage broke if true
+    },
+  "include": [],
+  "exclude": ["node_modules","npm"]
+}