diff --git a/modules/printing/default.nix b/modules/printing/default.nix
index f53f429..10c1539 100644
--- a/modules/printing/default.nix
+++ b/modules/printing/default.nix
@@ -1,8 +1,11 @@
 {pkgs, ...}: {
-  services.avahi.enable = true;
-  # Important to resolve .local domains of printers, otherwise you get an error
-  # like  "Impossible to connect to XXX.local: Name or service not known"
-  services.avahi.nssmdns4 = true;
+  services.avahi = {
+    enable = true;
+    # Important to resolve .local domains of printers, otherwise you get an error
+    # like  "Impossible to connect to XXX.local: Name or service not known"
+    nssmdns4 = true;
+    openFirewall = true;
+  };
   hardware.sane.enable = true;
 
   services.printing = {