diff --git a/modules/services/web-servers/apache-httpd/default.nix b/modules/services/web-servers/apache-httpd/default.nix
index 9157aed3173..55902f9e5e0 100644
--- a/modules/services/web-servers/apache-httpd/default.nix
+++ b/modules/services/web-servers/apache-httpd/default.nix
@@ -431,8 +431,9 @@ in
 
       logFormat = mkOption {
         default = "common";
+        example = "combined";
         description = "
-          Log format for Apache's log files. 
+          Log format for Apache's log files. Possible values are: combined, common, referer, agent.
         ";
       };