diff --git a/src/array/array.jl b/src/array/array.jl
index b4cc08a60..c57912870 100644
--- a/src/array/array.jl
+++ b/src/array/array.jl
@@ -95,7 +95,7 @@ metadata(A::AbstractDimArray) = A.metadata
 layerdims(A::AbstractDimArray) = basedims(A)
 
 @inline rebuildsliced(A::AbstractBasicDimArray, args...) = rebuildsliced(getindex, A, args...)
-@inline function rebuildsliced(f::Function, A::AbstractBasicDimArray, data::AbstractArray, I::Tuple, name=name(A))
+@inline function rebuildsliced(f::Function, A::AbstractBasicDimArray, data, I, name=name(A))
     I1 = to_indices(A, I)
     rebuild(A, data, slicedims(f, A, I1)..., name)
 end
diff --git a/src/utils.jl b/src/utils.jl
index fe25478c6..3a7375db6 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -85,7 +85,6 @@ modify(CuArray, A)
 This also works for all the data layers in a `DimStack`.
 """
 function modify end
-modify(f, s::AbstractDimStack) = maplayers(a -> modify(f, a), s)
 # Stack optimisation to avoid compilation to build all the `AbstractDimArray` 
 # layers, and instead just modify the parent data directly.
 modify(f, s::AbstractDimStack{<:Any,<:NamedTuple}) =