diff --git a/src/FillArrays.jl b/src/FillArrays.jl
index f3d36d80..ebb4616a 100644
--- a/src/FillArrays.jl
+++ b/src/FillArrays.jl
@@ -461,8 +461,8 @@ for (Typ, funcs, func) in ((:Zeros, :zeros, :zero), (:Ones, :ones, :one))
 end
 
 # temporary patch. should be a PR(#48895) to LinearAlgebra
-Diagonal{T}(A::AbstractMatrix) where T = Diagonal{T}(diag(A))
-function convert(::Type{T}, A::AbstractMatrix) where T<:Diagonal 
+Diagonal{T}(A::AbstractFillMatrix) where T = Diagonal{T}(diag(A))
+function convert(::Type{T}, A::AbstractFillMatrix) where T<:Diagonal 
     checksquare(A)
     isdiag(A) ? T(A) : throw(InexactError(:convert, T, A))
 end
diff --git a/src/fillalgebra.jl b/src/fillalgebra.jl
index f05f2481..d53e6c14 100644
--- a/src/fillalgebra.jl
+++ b/src/fillalgebra.jl
@@ -253,12 +253,12 @@ end
 function +(a::ZerosVector{T}, b::AbstractRange) where {T}
     size(a) ≠ size(b) && throw(DimensionMismatch("dimensions must match."))
     Tout = promote_type(T, eltype(b))
-    return AbstractRange{Tout}(b)
+    return T(first(b)):T(step(b)):T(last(b))
 end
-function +(a::ZerosVector{T}, b::UnitRange) where {T}
+function +(a::ZerosVector{T}, b::UnitRange) where {T<:Integer}
     size(a) ≠ size(b) && throw(DimensionMismatch("dimensions must match."))
     Tout = promote_type(T, eltype(b))
-    return AbstractRange{Tout}(b)
+    return AbstractUnitRange{T}(b)
 end
 
 function -(a::ZerosVector, b::AbstractRange)
@@ -267,10 +267,6 @@ function -(a::ZerosVector, b::AbstractRange)
 end
 -(a::AbstractRange, b::ZerosVector) = a + b
 
-# temporary patch. should be a PR(#48894) to julia base.
-AbstractRange{T}(r::AbstractUnitRange) where {T<:Integer} = AbstractUnitRange{T}(r)
-AbstractRange{T}(r::AbstractRange) where T = T(first(r)):T(step(r)):T(last(r))
-
 ####
 # norm
 ####