diff --git a/types/custom-functions-runtime/custom-functions-runtime-tests.ts b/types/custom-functions-runtime/custom-functions-runtime-tests.ts
index 4882c6bcd2..0186416e95 100644
--- a/types/custom-functions-runtime/custom-functions-runtime-tests.ts
+++ b/types/custom-functions-runtime/custom-functions-runtime-tests.ts
@@ -2,8 +2,8 @@ function ADD10(n: number) {
     return n + 10;
 }
 
-CustomFunctionMappings = { 
-    "addTen": ADD10
+CustomFunctionMappings = {
+    addTen: ADD10
 };
 
 async function getStockValues(ticker: string, handler: CustomFunctions.StreamingHandler<number>) {
@@ -12,7 +12,7 @@ async function getStockValues(ticker: string, handler: CustomFunctions.Streaming
 }
 
 async function getStockValuesOneTime(ticker: string, handler: CustomFunctions.CancelableHandler) {
-    var shouldStop = false;
+    let shouldStop = false;
     handler.onCanceled = () => shouldStop = true;
     await pause(1000);
 
diff --git a/types/custom-functions-runtime/tslint.json b/types/custom-functions-runtime/tslint.json
index 916693cb02..837163b606 100644
--- a/types/custom-functions-runtime/tslint.json
+++ b/types/custom-functions-runtime/tslint.json
@@ -1,6 +1,6 @@
 {
-    "extends": "dtslint/dt.json"
+    "extends": "dtslint/dt.json",
     "rules": {
-        "semicolon": false,
+        "semicolon": false
     }
 }