diff --git a/src/tracker/lib/array.jl b/src/tracker/lib/array.jl
index 3f607805..488d160f 100644
--- a/src/tracker/lib/array.jl
+++ b/src/tracker/lib/array.jl
@@ -33,8 +33,10 @@ TrackedArray(x::AbstractArray) = TrackedArray(Call(), x, zero(x))
 
 Base.eltype(x::Type{<:TrackedArray{T}}) where T <: Real = TrackedReal{T}
 
-Base.show(io::IO, ::Type{TrackedArray{T,N,A}}) where {T,N,A<:AbstractArray{T,N}} =
-  print(io, "TrackedArray{…,$A}")
+Base.show(io::IO, t::Type{TrackedArray{T,N,A}}) where {T,N,A<:AbstractArray{T,N}} =
+  @isdefined(A) ?
+    print(io, "TrackedArray{…,$A}") :
+    invoke(show, Tuple{IO,DataType}, io, t)
 
 function Base.summary(io::IO, x::TrackedArray)
   print(io, "Tracked ")