diff --git a/vite.config.ts b/vite.config.ts
index 88d527b..cc548b0 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -20,7 +20,7 @@ function buildVersion(): string {
     return dirty > 0 ? `${version}…${dirty}` : version
 }
 
-function isGitCommand() {
+function isGitCommand(): boolean {
     try {
         execSync("command -v git")
         return true