diff --git a/src/marshconnector.cpp b/src/marshconnector.cpp
index d43e511..591cf11 100644
--- a/src/marshconnector.cpp
+++ b/src/marshconnector.cpp
@@ -282,6 +282,10 @@ Vector2 MarshConnector::local_meters_from_global_degrees(double latitude,
   // Y East is just length along the circle of latitude
   double y = (lon - lon0) * (EARTH_RADIUS * cos(lat0));
 
+  const double map_size = 3000.0;
+  x = (Math::fract(x / map_size + 0.5) - 0.5) * map_size;
+  y = (Math::fract(y / map_size + 0.5) - 0.5) * map_size;
+
   return Vector2(x, y);
 }
 void MarshConnector::handle_sim_state(mavlink_message_t message) {