diff --git a/devstack/functions.sh b/devstack/functions.sh
index ca2da44..f758ff6 100644
--- a/devstack/functions.sh
+++ b/devstack/functions.sh
@@ -93,5 +93,7 @@
     local disk=$3
     local vcpus=$4
 
-    openstack flavor create --ram $ram --disk $disk --vcpus $vcpus $name
+    if [[ -z $(openstack flavor list | grep $name) ]]; then
+        openstack flavor create --ram $ram --disk $disk --vcpus $vcpus $name
+    fi
 }