diff --git a/src/action.ts b/src/action.ts
index 53b25a1..0d0e3dd 100644
--- a/src/action.ts
+++ b/src/action.ts
@@ -181,10 +181,10 @@ async function getDownloadUrl(options: Input): Promise<string> {
 
     if (version === "latest") tag = `bun-v${tags.at(-1)}`;
     else tag = `bun-v${tags.filter((t) => satisfies(t, version)).at(-1)}`;
+  } else if (validate(tag)) {
+    tag = `bun-v${tag}`;
   }
 
-  if (validate(tag)) tag = `bun-v${tag}`;
-
   const eversion = encodeURIComponent(tag ?? version);
   const eos = encodeURIComponent(os ?? getPlatform());
   const earch = encodeURIComponent(arch ?? getArchitecture());