diff --git a/src/groups/group.jl b/src/groups/group.jl
index 733176f308..3f7243e540 100644
--- a/src/groups/group.jl
+++ b/src/groups/group.jl
@@ -25,6 +25,7 @@ abstract type AbstractGroupOperation end
     abstract type AbstractGroupDecroatorType <: AbstractDecoratorType
 
 A common decorator type for all group decorators.
+It is similar to [`DefaultEmbeddingType`](@ref) but for groups.
 """
 abstract type AbstractGroupDecoratorType <: AbstractDecoratorType end