diff --git a/dist/index.js b/dist/index.js
index ddbe47d..2b30209 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1703,7 +1703,7 @@ function run() {
                     core.debug(`Found installation path: ${installationPath}`);
                     // x64 and arm64 only exist in one possible location, so no fallback probing
                     if (MSBUILD_ARCH === 'x64' || MSBUILD_ARCH === 'arm64') {
-                        let toolPath = path.join(installationPath, 'MSBuild\\Current\\Bin\\${MSBUILD_ARCH}\\MSBuild.exe');
+                        let toolPath = path.join(installationPath, `MSBuild\\Current\\Bin\\${MSBUILD_ARCH}\\MSBuild.exe`);
                         core.debug(`Checking for path: ${toolPath}`);
                         if (!fs.existsSync(toolPath)) {
                             return;
diff --git a/src/main.ts b/src/main.ts
index 8237e14..5668bba 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -75,7 +75,7 @@ async function run(): Promise<void> {
         if (MSBUILD_ARCH === 'x64' || MSBUILD_ARCH === 'arm64') {
           let toolPath = path.join(
             installationPath,
-            'MSBuild\\Current\\Bin\\${MSBUILD_ARCH}\\MSBuild.exe'
+            `MSBuild\\Current\\Bin\\${MSBUILD_ARCH}\\MSBuild.exe`
           )
           core.debug(`Checking for path: ${toolPath}`)
           if (!fs.existsSync(toolPath)) {