diff --git a/virttest/utils_v2v.py b/virttest/utils_v2v.py
index 10ff69a9d6..e3c20cc1b6 100644
--- a/virttest/utils_v2v.py
+++ b/virttest/utils_v2v.py
@@ -651,7 +651,7 @@ def __init__(self, test, params, env):
         else:
             raise ValueError("Doesn't support %s target now" % self.target)
 
-    def create_session(self, timeout=480):
+    def create_session(self, timeout=900):
         if self.session:
             LOG.debug("vm session %s exists", self.session)
             return