diff --git a/modules/services/polybar.nix b/modules/services/polybar.nix
index 7912d8988..da0c617e2 100644
--- a/modules/services/polybar.nix
+++ b/modules/services/polybar.nix
@@ -199,14 +199,14 @@ in {
     ];
 
     home.packages = [ cfg.package ];
-    xdg.configFile."polybar/config".source = configFile;
+    xdg.configFile."polybar/config.ini".source = configFile;
 
     systemd.user.services.polybar = {
       Unit = {
         Description = "Polybar status bar";
         PartOf = [ "tray.target" ];
         X-Restart-Triggers =
-          [ "${config.xdg.configFile."polybar/config".source}" ];
+          [ "${config.xdg.configFile."polybar/config.ini".source}" ];
       };
 
       Service = {
diff --git a/tests/modules/services/polybar/basic-configuration.nix b/tests/modules/services/polybar/basic-configuration.nix
index b6374acd8..e5bb3f388 100644
--- a/tests/modules/services/polybar/basic-configuration.nix
+++ b/tests/modules/services/polybar/basic-configuration.nix
@@ -50,8 +50,8 @@
       assertFileRegex $serviceFile 'X-Restart-Triggers=.*polybar\.conf'
       assertFileRegex $serviceFile 'ExecStart=.*/bin/polybar-start'
 
-      assertFileExists home-files/.config/polybar/config
-      assertFileContent home-files/.config/polybar/config \
+      assertFileExists home-files/.config/polybar/config.ini
+      assertFileContent home-files/.config/polybar/config.ini \
           ${./basic-configuration.conf}
     '';
   };