diff --git a/test/tests.json b/test/tests.json
index 43d6ded..3381a1f 100644
--- a/test/tests.json
+++ b/test/tests.json
@@ -562,6 +562,7 @@
   {
     "name": "dart",
     "client": {
+      "timeout": 15,
       "transports": [
         "buffered",
         "framed",
@@ -577,6 +578,7 @@
       ],
       "command": [
         "dart",
+	"--enable-asserts",
         "test_client/bin/main.dart"
       ]
     },