diff --git a/unikernels/unikraft-cu/image-chromium/x11vnc_startup.sh b/unikernels/unikraft-cu/image-chromium/x11vnc_startup.sh
index ad4b352c..6f16940f 100755
--- a/unikernels/unikraft-cu/image-chromium/x11vnc_startup.sh
+++ b/unikernels/unikraft-cu/image-chromium/x11vnc_startup.sh
@@ -3,6 +3,7 @@ echo "starting vnc"
 
 (x11vnc -display $DISPLAY \
     -forever \
+    -threads \
     -shared \
     -wait 50 \
     -rfbport 5900 \