diff --git a/plugins/david.zsh b/plugins/david.zsh
index 04627de..063a97d 100644
--- a/plugins/david.zsh
+++ b/plugins/david.zsh
@@ -46,7 +46,7 @@ vm()
 	                        -cpu host -enable-kvm -machine type=pc,accel=kvm -smp 4 \
 		                -m 4096 \
     				-drive file=$filename,if=virtio \
-      				-net nic -net bridge,br=br0 \
+				-net nic -net bridge,br=br0,mac=$(genmac.sh),mac=$(genmac.sh) \
 				-boot order=n
 
     elif [ $option = "start" ]; then
@@ -54,27 +54,27 @@ vm()
 		                -cpu host -enable-kvm -machine type=pc,accel=kvm -smp 4 \
 			        -m 4096 \
                 		-drive file=$filename,if=virtio \
-                		-net nic -net bridge,br=br0
+                		-net nic -net bridge,br=br0,mac=$(genmac.sh)
     elif [ $option = "net" ]; then
         sudo qemu-system-x86_64 -vga virtio -display sdl,gl=on \
 		                -cpu host -enable-kvm -machine type=pc,accel=kvm -smp 4 \
 			        -m 4096 \
                 		-drive file=$filename,if=virtio \
-                		-net nic -net bridge,br=br0 \
+                		-net nic -net bridge,br=br0,mac=$(genmac.sh) \
 				-boot order=n
     elif [ $option = "low" ]; then
         sudo qemu-system-x86_64 -vga std \
 		                -cpu host -enable-kvm -machine type=pc,accel=kvm -smp 4 \
 			        -m 4096 \
                 		-drive file=$filename,if=virtio \
-                		-net nic -net bridge,br=br0 \
+                		-net nic -net bridge,br=br0,mac=$(genmac.sh) \
 				-boot order=n
     elif [ $option = "nofb" ]; then
         sudo qemu-system-x86_64 -nographic -curses \
 		                -cpu host -enable-kvm -machine type=pc,accel=kvm -smp 4 \
 			        -m 4096 \
                 		-drive file=$filename,if=virtio \
-                		-net nic -net bridge,br=br0
+                		-net nic -net bridge,br=br0,mac=$(genmac.sh)
 
     else
 	echo "option unknown"