diff --git a/src/Fields/indices.jl b/src/Fields/indices.jl
index c056c6566c..86d15537c9 100644
--- a/src/Fields/indices.jl
+++ b/src/Fields/indices.jl
@@ -144,6 +144,7 @@ bycolumn(
 
 function bycolumn(fn, space::AbstractSpace, ::ClimaComms.CUDADevice)
     fn(:)
+    return nothing
 end