diff --git a/benchmark/radosbench.py b/benchmark/radosbench.py
index 09e836cd..2c0e497c 100644
--- a/benchmark/radosbench.py
+++ b/benchmark/radosbench.py
@@ -78,7 +78,8 @@ def _run(self, mode, run_dir, out_dir):
         if self.concurrent_ops:
             concurrent_ops_str = '--concurrent-ios %s' % self.concurrent_ops
         #determine rados version    
-        rados_version_str = subprocess.check_output(["rados", "-v"])
+        #rados_version_str = subprocess.check_output(["rados", "-v"])
+        rados_version_str, err = common.pdsh(settings.getnodes('head'), '/usr/bin/rados -v').communicate()
         m = re.findall("version (\d+)", rados_version_str)
         rados_version = int(m[0])