diff --git a/opencontrail/compute.sls b/opencontrail/compute.sls
index 5710ff4..8729b02 100644
--- a/opencontrail/compute.sls
+++ b/opencontrail/compute.sls
@@ -137,7 +137,7 @@
 
 contrail_load_vrouter_kernel_module:
   cmd.run:
-  - name: modprobe vrouter
+  - name: sync && echo 3 > /proc/sys/vm/drop_caches && echo 1 > /proc/sys/vm/compact_memory && modprobe vrouter
   - unless: "lsmod | grep vrouter"
   - cwd: /root
   - require: