diff --git a/README.md b/README.md
index 39197fc9..ab1ae690 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ GPXSee is a Qt-based GPS log file viewer and analyzer that supports all common G
 
 ## Features
 * Opens GPX, TCX, FIT, KML, IGC, NMEA, SLF, LOC, GeoJSON, OziExplorer (PLT, RTE, WPT), Garmin CSV and geotagged JPEG files.
-* User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS).
+* User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS, QuadTiles).
 * Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases, Garmin IMG & JNX maps, TwoNav RMaps, GeoTIFF images).
 * Elevation, speed, heart rate, cadence, power, temperature and gear ratio/shifts graphs.
 * Support for DEM files (SRTM HGT).