diff --git a/dist/index.js b/dist/index.js
index 3020b3e..87a1a02 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1320,7 +1320,7 @@ function run() {
             console.log(`##[add-matcher]${matchersPath}`);
             // output the version actually being used
             let goPath = yield io.which('go');
-            let goVersion = child_process_1.default.execSync(`${goPath} version`);
+            let goVersion = (child_process_1.default.execSync(`${goPath} version`) || '').toString();
             console.log(goVersion);
         }
         catch (error) {
diff --git a/src/main.ts b/src/main.ts
index 1e31578..d693deb 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -53,7 +53,7 @@ export async function run() {
 
     // output the version actually being used
     let goPath = await io.which('go');
-    let goVersion = cp.execSync(`${goPath} version`);
+    let goVersion = (cp.execSync(`${goPath} version`) || '').toString();
 
     console.log(goVersion);
   } catch (error) {