diff --git a/geometry/latlon.hpp b/geometry/latlon.hpp
index 95476645b4..a8e69cd2c7 100644
--- a/geometry/latlon.hpp
+++ b/geometry/latlon.hpp
@@ -15,7 +15,8 @@ public:
   static double const kMinLon;
   static double const kMaxLon;
 
-  double lat, lon;
+  double lat;
+  double lon;
 
   /// Does NOT initialize lat and lon. Allows to use it as a property of an ObjC class.
   LatLon() = default;