diff --git a/index.js b/index.js
index 87252f5..e91b863 100644
--- a/index.js
+++ b/index.js
@@ -12,8 +12,8 @@ async function downloadRelease(octokit, os, org, repo, release, token) {
 
     // Determine environment specific details, paths etc...
     const postfix = `_${os}_amd64.${os === "windows" ? "zip" : "tar.gz"}`;
-    const tempdir = os === "windows" ? process.env.TEMP : "/tmp";
-    const binpath = os === "windows" ? "C:\\Program Files\\GoTestTools\\" : "/usr/local/bin/";
+    const tempdir = os === "windows" ? process.env.TEMP + "\\" : "/tmp/";
+    const binpath = os === "windows" ? "C:\\Program Files\\GoTestTools" : "/usr/local/bin";
     const extract = os === "windows" ? "tar -xvf" : "tar -xvzf";
     const archive = `${tempdir}gotestfmt${postfix}`;