diff --git a/include/server/api/route_parameters_grammar.hpp b/include/server/api/route_parameters_grammar.hpp
index 28e7e9605..b38080267 100644
--- a/include/server/api/route_parameters_grammar.hpp
+++ b/include/server/api/route_parameters_grammar.hpp
@@ -42,11 +42,13 @@ struct RouteParametersGrammar : public BaseParametersGrammar<Iterator, Signature
 
     RouteParametersGrammar(qi::rule<Iterator, Signature> &root_rule_) : BaseGrammar(root_rule_)
     {
+        using AnnotationsType = engine::api::RouteParameters::AnnotationsType;
+
         const auto add_annotation = [](engine::api::RouteParameters &route_parameters,
-                                       engine::api::RouteParameters::AnnotationsType &route_param) {
+                                       AnnotationsType route_param) {
             route_parameters.annotations_type = route_parameters.annotations_type | route_param;
-            route_parameters.annotations = route_parameters.annotations_type !=
-                                           engine::api::RouteParameters::AnnotationsType::None;
+            route_parameters.annotations =
+                route_parameters.annotations_type != AnnotationsType::None;
         };
 
         geometries_type.add("geojson", engine::api::RouteParameters::GeometriesType::GeoJSON)(
@@ -57,13 +59,9 @@ struct RouteParametersGrammar : public BaseParametersGrammar<Iterator, Signature
             "full", engine::api::RouteParameters::OverviewType::Full)(
             "false", engine::api::RouteParameters::OverviewType::False);
 
-        annotations_type.add("true", engine::api::RouteParameters::AnnotationsType::All)(
-            "false", engine::api::RouteParameters::AnnotationsType::None)(
-            "duration", engine::api::RouteParameters::AnnotationsType::Duration)(
-            "nodes", engine::api::RouteParameters::AnnotationsType::Nodes)(
-            "distance", engine::api::RouteParameters::AnnotationsType::Distance)(
-            "weight", engine::api::RouteParameters::AnnotationsType::Weight)(
-            "datasources", engine::api::RouteParameters::AnnotationsType::Datasources);
+        annotations_type.add("duration", AnnotationsType::Duration)(
+            "nodes", AnnotationsType::Nodes)("distance", AnnotationsType::Distance)(
+            "weight", AnnotationsType::Weight)("datasources", AnnotationsType::Datasources);
 
         base_rule =
             BaseGrammar::base_rule(qi::_r1) |
@@ -75,7 +73,9 @@ struct RouteParametersGrammar : public BaseParametersGrammar<Iterator, Signature
             (qi::lit("overview=") >
              overview_type[ph::bind(&engine::api::RouteParameters::overview, qi::_r1) = qi::_1]) |
             (qi::lit("annotations=") >
-             annotations_type[ph::bind(add_annotation, qi::_r1, qi::_1)] % ',');
+             (qi::lit("true")[ph::bind(add_annotation, qi::_r1, AnnotationsType::All)] |
+              qi::lit("false")[ph::bind(add_annotation, qi::_r1, AnnotationsType::None)] |
+              (annotations_type[ph::bind(add_annotation, qi::_r1, qi::_1)] % ',')));
 
         query_rule = BaseGrammar::query_rule(qi::_r1);
     }
diff --git a/unit_tests/server/parameters_parser.cpp b/unit_tests/server/parameters_parser.cpp
index 72168a0b9..3fcac85cc 100644
--- a/unit_tests/server/parameters_parser.cpp
+++ b/unit_tests/server/parameters_parser.cpp
@@ -67,6 +67,7 @@ BOOST_AUTO_TEST_CASE(invalid_route_urls)
     BOOST_CHECK_EQUAL(testInvalidOptions<RouteParameters>(std::string{"1,2;3,"} + '\0'), 6);
     BOOST_CHECK_EQUAL(testInvalidOptions<RouteParameters>("1,2;3,4?annotations=distances"), 28UL);
     BOOST_CHECK_EQUAL(testInvalidOptions<RouteParameters>("1,2;3,4?annotations="), 20UL);
+    BOOST_CHECK_EQUAL(testInvalidOptions<RouteParameters>("1,2;3,4?annotations=true,false"), 24UL);
     BOOST_CHECK_EQUAL(
         testInvalidOptions<RouteParameters>("1,2;3,4?annotations=&overview=simplified"), 20UL);