diff --git a/test/svg2js/_index.js b/test/svg2js/_index.js
index 8fbf916ab..d88a16f30 100644
--- a/test/svg2js/_index.js
+++ b/test/svg2js/_index.js
@@ -441,7 +441,7 @@ describe('svg2js', function() {
                     thrownErrorParts = error.toString().split(':');
 
                 return rootErrorParts.reduce(function(result, value, index) {
-                    return result && value.includes(thrownErrorParts[index]);
+                    return result && value.indexOf(thrownErrorParts[index]) === 0;
                 }, true).should.be.true();
             });