diff --git a/stack.sh b/stack.sh
index 19d7e84..446661a 100755
--- a/stack.sh
+++ b/stack.sh
@@ -789,7 +789,7 @@ fi
 if [[ "$ENABLED_SERVICES" =~ "q-svc" ]]; then
     # Install deps
     # FIXME add to file/apts/quantum, but don't install if not needed!
-    apt_get install -y openvswitch-switch openvswitch-datapath-dkms
+    apt_get install openvswitch-switch openvswitch-datapath-dkms
 
     # Create database for the plugin/agent
     if [[ "$Q_PLUGIN" = "openvswitch" ]]; then