diff --git a/openlr/road_info_getter.hpp b/openlr/road_info_getter.hpp
index 54db6646ed..94fe377b56 100644
--- a/openlr/road_info_getter.hpp
+++ b/openlr/road_info_getter.hpp
@@ -22,7 +22,7 @@ class RoadInfoGetter final
 public:
   struct RoadInfo
   {
-    RoadInfo(FeatureType & ft);
+    explicit RoadInfo(FeatureType & ft);
 
     ftypes::HighwayClass m_hwClass = ftypes::HighwayClass::Undefined;
     bool m_link = false;