diff --git a/lib/plugins/package/lib/zipService.test.js b/lib/plugins/package/lib/zipService.test.js
index acb99c327..a82dcd285 100644
--- a/lib/plugins/package/lib/zipService.test.js
+++ b/lib/plugins/package/lib/zipService.test.js
@@ -694,11 +694,11 @@ describe('zipService', () => {
       'bin': {
         'binary-777': {
           content: 'some content',
-          permissions: 777,
+          permissions: 0o777,
         },
         'binary-444': {
           content: 'some content',
-          permissions: 444,
+          permissions: 0o444,
         },
       },
       // lib
@@ -820,12 +820,12 @@ describe('zipService', () => {
           } else {
             // binary file is set with chmod of 777
             expect(unzippedFileData['bin/binary-777'].unixPermissions).to.equal(
-              Math.pow(2, 15) + 777
+              Math.pow(2, 15) + 0o777
             );
 
             // read only file is set with chmod of 444
             expect(unzippedFileData['bin/binary-444'].unixPermissions).to.equal(
-              Math.pow(2, 15) + 444
+              Math.pow(2, 15) + 0o444
             );
           }
         });