diff --git a/app/api/openapi/repo.go b/app/api/openapi/repo.go
index e5e2802f0..0ef3387eb 100644
--- a/app/api/openapi/repo.go
+++ b/app/api/openapi/repo.go
@@ -897,7 +897,7 @@ func repoOperations(reflector *openapi3.Reflector) {
 		repoRequest
 		Identifier string `path:"rule_identifier"`
 	}{}, http.MethodGet)
-	_ = reflector.SetJSONResponse(&opRuleGet, []rule{}, http.StatusOK)
+	_ = reflector.SetJSONResponse(&opRuleGet, rule{}, http.StatusOK)
 	_ = reflector.SetJSONResponse(&opRuleGet, new(usererror.Error), http.StatusInternalServerError)
 	_ = reflector.SetJSONResponse(&opRuleGet, new(usererror.Error), http.StatusUnauthorized)
 	_ = reflector.SetJSONResponse(&opRuleGet, new(usererror.Error), http.StatusForbidden)