--- a/src/Loops.jl	Wed Dec 15 01:09:09 2021 +0200
+++ b/src/Loops.jl	Wed Dec 22 11:13:38 2021 +0200
@@ -100,7 +100,7 @@
 # Looping over indices and transformation
 ##########################################
 
-Box{N, T} = NTuple{N, Tuple{T, T}}
+const Box{N, T} = NTuple{N, Tuple{T, T}}
 struct Grid{R} end
 
 """