diff --git a/tests/TestHarness/Cluster.py b/tests/TestHarness/Cluster.py
index 292adaae21..1f4a11b7e0 100644
--- a/tests/TestHarness/Cluster.py
+++ b/tests/TestHarness/Cluster.py
@@ -256,6 +256,8 @@ def launch(self, pnodes=1, unstartedNodes=0, totalNodes=1, prodCount=21, topo="m
         if self.staging:
             argsArr.append("--nogen")
         nodeosArgs=""
+        if "--vote-threads" not in extraNodeosArgs:
+            nodeosArgs += " --vote-threads 3"
         if "--max-transaction-time" not in extraNodeosArgs:
             nodeosArgs += " --max-transaction-time -1"
         if "--abi-serializer-max-time-ms" not in extraNodeosArgs: