diff --git a/stdlib/SparseArrays/src/sparsematrix.jl b/stdlib/SparseArrays/src/sparsematrix.jl
index f954d33393d619..5b107ff86d2584 100644
--- a/stdlib/SparseArrays/src/sparsematrix.jl
+++ b/stdlib/SparseArrays/src/sparsematrix.jl
@@ -401,6 +401,16 @@ function SparseMatrixCSC{Tv,Ti}(M::StridedMatrix) where {Tv,Ti}
 end
 SparseMatrixCSC(M::Adjoint{<:Any,<:SparseMatrixCSC}) = copy(M)
 SparseMatrixCSC(M::Transpose{<:Any,<:SparseMatrixCSC}) = copy(M)
+SparseMatrixCSC{Tv}(M::Adjoint{Tv,SparseMatrixCSC{Tv}}) where {Tv} = copy(M)
+SparseMatrixCSC{Tv}(M::Transpose{Tv,SparseMatrixCSC{Tv}}) where {Tv} = copy(M)
+SparseMatrixCSC{Tv,Ti}(M::Adjoint{Tv,SparseMatrixCSC{Tv,Ti}}) where {Tv,Ti} = copy(M)
+SparseMatrixCSC{Tv,Ti}(M::Transpose{Tv,SparseMatrixCSC{Tv,Ti}}) where {Tv,Ti} = copy(M)
+
+# converting from adjoint or transpose sparse matrices to sparse matrices with different eltype
+SparseMatrixCSC{Tv}(M::Adjoint{<:Any,SparseMatrixCSC}) where {Tv} = SparseMatrixCSC{Tv}(copy(M))
+SparseMatrixCSC{Tv}(M::Transpose{<:Any,SparseMatrixCSC}) where {Tv} = SparseMatrixCSC{Tv}(copy(M))
+SparseMatrixCSC{Tv,Ti}(M::Adjoint{<:Any,SparseMatrixCSC}) where {Tv,Ti} = SparseMatrixCSC{Tv,Ti}(copy(M))
+SparseMatrixCSC{Tv,Ti}(M::Transpose{<:Any,SparseMatrixCSC}) where {Tv,Ti} = SparseMatrixCSC{Tv,Ti}(copy(M))
 
 # converting from SparseMatrixCSC to other matrix types
 function Matrix(S::SparseMatrixCSC{Tv}) where Tv