diff --git a/pkgs/additional/sanebox/sanebox b/pkgs/additional/sanebox/sanebox
index 6c67ebdc3..b120c28ea 100755
--- a/pkgs/additional/sanebox/sanebox
+++ b/pkgs/additional/sanebox/sanebox
@@ -122,6 +122,7 @@ usage() {
   echo '  --sanebox-no-portal'
   echo '      undo a previous `--sanebox-portal` arg'
   echo '  --sanebox-bwrap-arg <arg>'
+  echo '  --sanebox-pasta-arg <arg>'
   echo '  --sanebox-net-dev <iface>|all'
   echo '  --sanebox-net-gateway <ip-address>'
   echo '  --sanebox-dns <server>'
@@ -531,6 +532,11 @@ parseArgs() {
         shift
         bwrapFlags+=("$bwrapFlag")
         ;;
+      (--sanebox-pasta-arg)
+        local pastaArg=$1
+        shift
+        pastaArgs+=("$pastaArg")
+        ;;
       (--sanebox-net-dev)
         netDev=$1
         shift