diff --git a/global/io/default.nix b/global/io/default.nix
index 9763ec11..cc0b1331 100644
--- a/global/io/default.nix
+++ b/global/io/default.nix
@@ -13,7 +13,10 @@ in {
   };
 
   config = {
-    services.udev.extraRules = "" + (if cfg.betaflight then ''
+    services.udev.extraRules = ''
+      # ignore zvols
+      KERNEL=="zd*", ENV{UDISKS_IGNORE}="1"
+    '' + (if cfg.betaflight then ''
       # DFU (Internal bootloader for STM32 and AT32 MCUs)
       SUBSYSTEM=="usb", ATTRS{idVendor}=="2e3c", ATTRS{idProduct}=="df11", MODE="0664", GROUP="dialout"
       SUBSYSTEM=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="df11", MODE="0664", GROUP="dialout"