diff --git a/aspnetcore/mvc/controllers/testing/samples/3.x/TestingControllersSample/tests/global.json b/aspnetcore/mvc/controllers/testing/samples/3.x/TestingControllersSample/tests/global.json
index 0b965f245d..79422f0cc1 100644
--- a/aspnetcore/mvc/controllers/testing/samples/3.x/TestingControllersSample/tests/global.json
+++ b/aspnetcore/mvc/controllers/testing/samples/3.x/TestingControllersSample/tests/global.json
@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": 3.0.100"
+    "version": "3.0.100"
   }
-}
\ No newline at end of file
+}