diff --git a/README.md b/README.md
index 33b2ba1..eb5321c 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,8 @@ The map style is loaded from the
 file on plugin load. If the style uses a sprite, the sprite JSON file must
 be named `sprite.json` and the sprite image `sprite.png` and both files must be
 placed in the same directory as the style itself. *A style compatible with the
-tiles data schema (Mapbox, OpenMapTiles, Tilezen) must be used.*
+tiles data schema (Mapbox, OpenMapTiles, Tilezen, Ordnance Survey, Esri, ...)
+must be used.*
 
 For a list of "ready to use" styles see the
 [QtPBFImagePlugin-styles](https://github.com/tumic0/QtPBFImagePlugin-styles)