diff --git a/lib/ClimaCoreTempestRemap/src/netcdf.jl b/lib/ClimaCoreTempestRemap/src/netcdf.jl
index 578154b695..126275b183 100644
--- a/lib/ClimaCoreTempestRemap/src/netcdf.jl
+++ b/lib/ClimaCoreTempestRemap/src/netcdf.jl
@@ -1,8 +1,5 @@
 import CommonDataModel
 import ClimaCore: slab, column
-# Keep in sync with definition(s) in ClimaCore.DataLayouts.
-@inline slab_index(i, j) = CartesianIndex(i, j, 1, 1, 1)
-@inline slab_index(i) = CartesianIndex(i, 1, 1, 1, 1)
 
 
 """