diff --git a/.gitignore b/.gitignore
index 7fc2709..356d980 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,8 @@ yarn-debug.log*
 yarn-error.log*
 lerna-debug.log*
 
+.DS_Store
+
 # Diagnostic reports (https://nodejs.org/api/report.html)
 report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
 
diff --git a/packages/action/dist/index.js b/packages/action/dist/index.js
index d4d227b..8e04ac9 100644
--- a/packages/action/dist/index.js
+++ b/packages/action/dist/index.js
@@ -72,7 +72,7 @@ function run() {
                     let i = 0;
                     for (const artifact of artifacts) {
                         if (artifact.endsWith('.app')) {
-                            yield action_core_1.execCommand(`tar -czf ${artifact}.tgz ${artifact}`, {
+                            yield action_core_1.execCommand(`tar czf ${artifact}.tgz ${artifact}`, {
                                 cwd: undefined
                             });
                             artifacts[i] += '.tgz';
diff --git a/packages/action/src/index.ts b/packages/action/src/index.ts
index fdb72ff..d40b7a8 100644
--- a/packages/action/src/index.ts
+++ b/packages/action/src/index.ts
@@ -92,7 +92,7 @@ async function run(): Promise<void> {
         let i = 0
         for (const artifact of artifacts) {
           if (artifact.endsWith('.app')) {
-            await execCommand(`tar -czf ${artifact}.tgz ${artifact}`, {
+            await execCommand(`tar czf ${artifact}.tgz ${artifact}`, {
               cwd: undefined
             })
             artifacts[i] += '.tgz'