diff --git a/base/refpointer.jl b/base/refpointer.jl
index ce2c6fc00560d..5027462eeb6b6 100644
--- a/base/refpointer.jl
+++ b/base/refpointer.jl
@@ -171,8 +171,8 @@ if is_primary_base_module
     Ref(x::AbstractArray, i::Integer) = RefArray(x, i)
 end
 
-cconvert(::Type{Ptr{P}}, a::Array{P}) where {P<:Union{Ptr,Cwstring,Cstring}} = getfield(a, :ref)
-cconvert(::Type{Ref{P}}, a::Array{P}) where {P<:Union{Ptr,Cwstring,Cstring}} = getfield(a, :ref)
+cconvert(::Type{Ptr{P}}, a::Array{<:Union{Ptr,Cwstring,Cstring}}) where {P<:Union{Ptr,Cwstring,Cstring}} = getfield(a, :ref)
+cconvert(::Type{Ref{P}}, a::Array{<:Union{Ptr,Cwstring,Cstring}}) where {P<:Union{Ptr,Cwstring,Cstring}} = getfield(a, :ref)
 cconvert(::Type{Ptr{P}}, a::Array) where {P<:Union{Ptr,Cwstring,Cstring}} = Ref{P}(a)
 cconvert(::Type{Ref{P}}, a::Array) where {P<:Union{Ptr,Cwstring,Cstring}} = Ref{P}(a)
 
diff --git a/test/ccall.jl b/test/ccall.jl
index 3647173eb9290..8b1fefdfc66e4 100644
--- a/test/ccall.jl
+++ b/test/ccall.jl
@@ -1934,3 +1934,6 @@ end
     end
     @test_throws "could not load symbol \"test\"" somefunction_not_found_libc()
 end
+
+# issue #52025
+@test Base.unsafe_convert(Ptr{Ptr{Cchar}}, Base.cconvert(Ptr{Ptr{Cchar}}, map(pointer, ["ab"]))) isa Ptr{Ptr{Cchar}}