diff --git a/zircon/scripts/package-image.sh b/zircon/scripts/package-image.sh
index 82e2d08e6961f79b9b88bd3df04f8b8374fe5d80..b447e8a4a094a237a0dfd8e6bf56451be1872e9d 100755
--- a/zircon/scripts/package-image.sh
+++ b/zircon/scripts/package-image.sh
@@ -143,6 +143,7 @@ fi
 
 if [[ ${MEXEC} == true ]]; then
     CMDLINE+=" netsvc.netboot=true"
+    MKBOOTIMG_CMDLINE+=" netsvc.netboot=true"
 fi
 
 # Append extra command line items