diff --git a/src/stages/install.ts b/src/stages/install.ts
index defece1..8463249 100644
--- a/src/stages/install.ts
+++ b/src/stages/install.ts
@@ -16,6 +16,6 @@ export const install = async () => {
 };
 
 export const isInstalled = async () => {
-	let returnCode = await exec("attic", ["-V"]);
+	let returnCode = await exec("sh", ["-c", "command -v attic &> /dev/null"]);
 	return returnCode === 0;
 };