diff --git a/app/src/main/cpp/PositionHelper.h b/app/src/main/cpp/PositionHelper.h
index 09985fd1..b1d0e865 100644
--- a/app/src/main/cpp/PositionHelper.h
+++ b/app/src/main/cpp/PositionHelper.h
@@ -36,8 +36,8 @@ inline void transformPosition(double& lat, double& lng)
 	double sqrtMagic = std::sqrt(magic);
 	dLat = (dLat * 180.0) / ((AXIS * (1 - OFFSET)) / (magic * sqrtMagic) * M_PI);
 	dLon = (dLon * 180.0) / (AXIS / sqrtMagic * std::cos(radLat) * M_PI);
-	lat = dLat;
-	lng = dLon;
+	lat += dLat;
+	lng += dLon;
 }
 
 inline bool shouldConvertPosition(double lat, double lon)