diff --git a/hosts/pulsebert/default.nix b/hosts/pulsebert/default.nix
index e06d3a40..fa99543e 100644
--- a/hosts/pulsebert/default.nix
+++ b/hosts/pulsebert/default.nix
@@ -83,15 +83,19 @@
     RestartSec = "1s";
   };
 
-  users.users = {
-    # Allow access to printer serial port and GPIO
-    "${config.services.octoprint.user}".extraGroups = [ "dialout" ];
-    # Allow gpio group to access GPIO devices
-    gpio = {
-      isNormalUser = true;
-      group = "gpio";
-    };
-  };
+  users.users = lib.mkMerge [
+    (lib.optionalAttrs config.services.octoprint.enable {
+      # Allow access to printer serial port and GPIO
+      "${config.services.octoprint.user}".extraGroups = [ "dialout" ];
+    })
+    {
+      # Allow gpio group to access GPIO devices
+      gpio = {
+        isNormalUser = true;
+        group = "gpio";
+      };
+    }
+  ];
 
   services = {
     # Do not log to flash: