diff --git a/src/__tests__/ControlledTree.test.tsx b/src/__tests__/ControlledTree.test.tsx
index 86bb3ae7..cac7001f 100644
--- a/src/__tests__/ControlledTree.test.tsx
+++ b/src/__tests__/ControlledTree.test.tsx
@@ -515,7 +515,7 @@ describe("Data with ids", () => {
   
   test("SelectedIds should not steal focus if another control has it", () => {
     let selectedIds = [42];
-    let renderContent = (<div>
+    const renderContent = (<div>
       <input type="text" id="editor"/>
       <MultiSelectCheckboxControlled
         selectedIds={selectedIds}