diff --git a/src/bin/tools/grant-exec-perms.ts b/src/bin/tools/grant-exec-perms.ts
index dab91c6b..315f39bb 100644
--- a/src/bin/tools/grant-exec-perms.ts
+++ b/src/bin/tools/grant-exec-perms.ts
@@ -3,10 +3,10 @@ import { join as pathJoin } from "path";
 import { constants } from "fs";
 import { chmod, stat } from "fs/promises";
 
-async () => {
-    var { bin } = await import(pathJoin(getProjectRoot(), "package.json"));
+(async () => {
+    const { bin } = await import(pathJoin(getProjectRoot(), "package.json"));
 
-    var promises = Object.values<string>(bin).map(async scriptPath => {
+    const promises = Object.values<string>(bin).map(async scriptPath => {
         const fullPath = pathJoin(getProjectRoot(), scriptPath);
         const oldMode = (await stat(fullPath)).mode;
         const newMode = oldMode | constants.S_IXUSR | constants.S_IXGRP | constants.S_IXOTH;
@@ -14,4 +14,4 @@ async () => {
     });
 
     await Promise.all(promises);
-};
+})();