diff --git a/system/tailscale/default.nix b/system/tailscale/default.nix
index 90e21a8..2a7d652 100644
--- a/system/tailscale/default.nix
+++ b/system/tailscale/default.nix
@@ -7,26 +7,21 @@
   lib,
   ...
 }:
-let
-  tailscaleWaitScript = pkgs.writeShellScript "tailscale-wait-for-ip" ''
-    echo "Waiting for tailscale0 to get an IP address..."
-    for i in {1..15}; do
-      if ${lib.getExe' pkgs.iproute2 "ip"} addr show dev tailscale0 2>/dev/null | ${lib.getExe' pkgs.gnugrep "grep"} -q 'inet '; then
-        echo "tailscale0 has IP address"
-        exit 0
-      fi
-      echo "Attempt $i"
-      sleep 1
-    done
-    echo "Warning: tailscale0 did not get IP address within 15 seconds"
-    exit 0
-  '';
-in
 {
   systemd.services.tailscaled = {
-    serviceConfig = {
-      ExecStartPost = tailscaleWaitScript;
-    };
+    serviceConfig.ExecStartPost = pkgs.writeShellScript "tailscale-wait-for-ip" ''
+      echo "Waiting for tailscale0 to get an IP address..."
+      for i in {1..15}; do
+        if ${lib.getExe' pkgs.iproute2 "ip"} addr show dev tailscale0 2>/dev/null | ${lib.getExe' pkgs.gnugrep "grep"} -q 'inet '; then
+          echo "tailscale0 has IP address"
+          exit 0
+        fi
+        echo "Attempt $i"
+        sleep 1
+      done
+      echo "Warning: tailscale0 did not get IP address within 15 seconds"
+      exit 0
+    '';
   };
 
   services.tailscale = {