diff --git a/testcloud/config.py b/testcloud/config.py
index 16a2d63..00a2556 100644
--- a/testcloud/config.py
+++ b/testcloud/config.py
@@ -164,7 +164,7 @@ def DATA_DIR(self, value):
 
     # Extra cmdline args for the qemu invocation.
     # Customize as needed :)
-    CMD_LINE_ARGS = []
+    CMD_LINE_ARGS = ["-append", "console=tty0 console=ttyS0,115200n8"]
     CMD_LINE_ENVS = {}
 
     # Extra coreos cmdline args for the qemu invocation.