diff --git a/doc/lua_api.md b/doc/lua_api.md
index e6b051184..66761e8bd 100644
--- a/doc/lua_api.md
+++ b/doc/lua_api.md
@@ -293,7 +293,7 @@ depends on by supplying a file with an equal name.
 Of the model file formats, only a subset is supported:
 
 Simple textured meshes (with multiple textures), optionally with normals.
-The .x and .b3d formats additionally support skeletal animation.
+The .x, .b3d and .gltf formats additionally support (a single) skeletal animation.
 
 Do not rely on glTF features not being supported; they may be supported in the future.
 The backwards compatibility guarantee does not extend to ignoring unsupported features.