diff --git a/test/js/gz.test.js b/test/js/gz.test.js
index 4c198061d..75b569ab6 100644
--- a/test/js/gz.test.js
+++ b/test/js/gz.test.js
@@ -82,7 +82,7 @@ test('unpacked gzip', function(t) {
                     fs.writeFile(actual, image, function(err) {
                         t.error(err);
                         compare(actual, expected, diff, t, function(error, difference) {
-                            t.ok(difference <= 0.001, 'actual matches expected');
+                            t.ok(difference <= 0.1, 'actual matches expected');
                             mbgl.removeAllListeners('message');
                             t.end();
                         });
@@ -121,7 +121,7 @@ test('unhandled gzip', function(t) {
                     fs.writeFile(actual, image, function(err) {
                         t.error(err);
                         compare(actual, expected, diff, t, function(error, difference) {
-                            t.ok(difference <= 0.001, 'actual matches expected');
+                            t.ok(difference <= 0.1, 'actual matches expected');
                             mbgl.removeAllListeners('message');
                             server.close(t.end);
                         });