diff --git a/test/core/imageOptimizerTest.js b/test/core/imageOptimizerTest.js
index ba273db..f1bc613 100644
--- a/test/core/imageOptimizerTest.js
+++ b/test/core/imageOptimizerTest.js
@@ -189,6 +189,7 @@ describe('imageOptimizer', function() {
             },
             status: 200,
             isImage: true,
+            isSVG: true,
             type: 'image',
             contentType: 'image/svg+xml',
             contentLength: 999,