diff --git a/src/dims/batching.jl b/src/dims/batching.jl
index d1a99e4d..d204bd18 100644
--- a/src/dims/batching.jl
+++ b/src/dims/batching.jl
@@ -32,7 +32,7 @@ convertel(T::Type, xs::Batch) =
 # TODO: remove this in favour of full batching semantics
 
 mapt(f, x) = f(x)
-mapt(f, xs::Tuple) = map(f, xs)
+mapt(f, xs::Tuple) = map(x -> mapt(f, x), xs)
 
 batchone(x) = Batch((x,))
 batchone(x::Batch) = x