diff --git a/src/spaces/generalspace.jl b/src/spaces/generalspace.jl
index d75727a8..cee69708 100644
--- a/src/spaces/generalspace.jl
+++ b/src/spaces/generalspace.jl
@@ -30,7 +30,7 @@ isconj(V::GeneralSpace) = V.conj
 Base.axes(V::GeneralSpace, ::Trivial=Trivial()) = Base.OneTo(dim(V))
 hassector(V::GeneralSpace, ::Trivial) = dim(V) != 0
 sectors(V::GeneralSpace) = OneOrNoneIterator(dim(V) != 0, Trivial())
-sectortype(::Type{GeneralSpace}) = Trivial
+sectortype(::Type{<:GeneralSpace}) = Trivial
 
 field(::Type{GeneralSpace{𝕜}}) where {𝕜} = 𝕜
 InnerProductStyle(::Type{<:GeneralSpace}) = NoInnerProduct()