diff --git a/tests/testUtils.py b/tests/testUtils.py
index e1549695979bce2627c78fcc8eb5ec569f07af16..9ee8dcca30dd1028e08b3a12974dc8303265355a 100755
--- a/tests/testUtils.py
+++ b/tests/testUtils.py
@@ -1276,7 +1276,7 @@ class Cluster(object):
         if len(self.nodes) > 0:
             raise RuntimeError("Cluster already running.")
 
-        cmd="%s -p %s -n %s -s %s -d %s -f --nogen" % (
+        cmd="%s -p %s -n %s -s %s -d %s -f" % (
             Utils.EosLauncherPath, pnodes, totalNodes, topo, delay)
         cmdArr=cmd.split()
         if self.staging: