diff --git a/model/custom_ruleset_test.go b/model/custom_ruleset_test.go
index 1972fd8d2..609017f11 100644
--- a/model/custom_ruleset_test.go
+++ b/model/custom_ruleset_test.go
@@ -28,7 +28,7 @@ func TestGetCustomRulesetsDefault(t *testing.T) {
 				{
 					Ruleset: "default",
 					License: "DRL",
-					File:    "default.txt",
+					File:    "default.rules",
 				},
 			},
 		},