diff --git a/src/progress.jl b/src/progress.jl
index b2eb316f..1dacc8ba 100644
--- a/src/progress.jl
+++ b/src/progress.jl
@@ -60,6 +60,7 @@ end
 Base.IteratorSize(::Type{ProgressLoggingFoldable{T}}) where {T} = Base.IteratorSize(T)
 Base.IteratorEltype(::Type{ProgressLoggingFoldable{T}}) where {T} = Base.IteratorEltype(T)
 Base.length(foldable::ProgressLoggingFoldable) = length(foldable.foldable)
+Base.size(foldable::ProgressLoggingFoldable) = size(foldable.foldable)
 Base.eltype(::Type{ProgressLoggingFoldable{T}}) where {T} = eltype(T)
 
 # Use Juno/Atom-compatible log-level.  See:
diff --git a/src/reduce.jl b/src/reduce.jl
index 60be6202..a38b8bdc 100644
--- a/src/reduce.jl
+++ b/src/reduce.jl
@@ -353,6 +353,10 @@ function split_into_chunks(coll, sz)
     collect(Iterators.partition(coll, sz))
 end
 
+function split_into_chunks(coll::Transducers.ProgressLoggingFoldable, sz)
+    withprogress(collect(Iterators.partition(coll.foldable, sz)); interval=coll.interval)
+end
+
 tcopy(xf, reducible; kwargs...) = tcopy(xf, _materializer(reducible), reducible; kwargs...)
 
 function tcopy(::Type{T}, itr; kwargs...) where {T}