diff --git a/src/Dimensions/Dimensions.jl b/src/Dimensions/Dimensions.jl
index 21a08adb9..95264276f 100644
--- a/src/Dimensions/Dimensions.jl
+++ b/src/Dimensions/Dimensions.jl
@@ -35,7 +35,7 @@ export name, label, dimnum, hasdim, hasselection, otherdims, commondims, combine
     basetypeof, basedims, dimstride, dims2indices, slicedims, dimsmatch, comparedims, reducedims
 
 export Dimension, IndependentDim, DependentDim, XDim, YDim, ZDim, TimeDim,
-    X, Y, Z, Ti, Dim, AnonDim, Coord, MergedLookup
+    X, Y, Z, Ti, Dim, AnonDim, Coord, MergedLookup, AutoVal
 
 export @dim
 
diff --git a/src/Dimensions/dimension.jl b/src/Dimensions/dimension.jl
index 3c6d9ce93..e45ea4648 100644
--- a/src/Dimensions/dimension.jl
+++ b/src/Dimensions/dimension.jl
@@ -148,6 +148,12 @@ const AllDims = Union{Symbol,Dimension,DimTuple,SymbolTuple,DimType,DimTypeTuple
 
 # DimensionalData interface methods
 
+struct AutoVal{T,K}
+    val::T
+    kw::K
+end
+val(av::AutoVal) = av.val
+
 """
     rebuild(dim::Dimension, val) => Dimension
     rebuild(dim::Dimension; val=val(dim)) => Dimension
@@ -329,8 +335,13 @@ Dim{:custom} Char['a', 'b', 'c']
 """
 struct Dim{S,T} <: Dimension{T}
     val::T
+    function Dim{S}(val; kw...) where {S}
+        if length(kw) > 0
+            val = AutoVal(val, values(kw))
+        end
+        new{S,typeof(val)}(val)
+    end
 end
-Dim{S}(val::T) where {S,T} = Dim{S,T}(val)
 function Dim{S}(val::AbstractArray; kw...) where S
     if length(kw) > 0
         val = AutoLookup(val, values(kw))
@@ -393,6 +404,13 @@ function dimmacro(typ, supertype, name::String=string(typ))
     quote
         Base.@__doc__ struct $typ{T} <: $supertype{T}
             val::T
+            function $typ(val; kw...)
+                if length(kw) > 0
+                    val = AutoVal(val, values(kw))
+                end
+                new{typeof(val)}(val)
+            end
+            $typ{T}(val::T; kw...) where T = new(val::T)
         end
         function $typ(val::AbstractArray; kw...)
             if length(kw) > 0
diff --git a/src/LookupArrays/lookup_arrays.jl b/src/LookupArrays/lookup_arrays.jl
index ded3f9e85..78ca0c6a9 100644
--- a/src/LookupArrays/lookup_arrays.jl
+++ b/src/LookupArrays/lookup_arrays.jl
@@ -423,7 +423,7 @@ _check_ordered_cyclic(order::Unordered) = throw(ArgumentError("Cyclic lookups mu
 
 function rebuild(l::Cyclic;
     data=parent(l), order=order(l), span=span(l), sampling=sampling(l), metadata=metadata(l),
-    cycle=cycle(l), _cycle_status=cycle_status(l), kw...
+    cycle=cycle(l), cycle_status=cycle_status(l), kw...
 )
     Cyclic(data, order, span, sampling, metadata, cycle, cycle_status)
 end