diff --git a/README.md b/README.md
index 21d6785a7..30424d35d 100644
--- a/README.md
+++ b/README.md
@@ -321,7 +321,7 @@ Currently, the `@compat` macro supports the following syntaxes:
 * `readstring` is replaced by methods of `read`. ([#22864])
 
     `read(::IO, ::Type{String})`, `read(::AbstractString, ::Type{String})`,
-    and `read(::Cmd, ::Type{String})` are defined for 0.6 and below.
+    and `read(::AbstractCmd, ::Type{String})` are defined for 0.6 and below.
 
 * `Range` is now `AbstractRange` ([#23570])
 
diff --git a/src/Compat.jl b/src/Compat.jl
index fb7b77da5..ea984393c 100644
--- a/src/Compat.jl
+++ b/src/Compat.jl
@@ -470,7 +470,7 @@ end
 if VERSION < v"0.7.0-DEV.1053"
     Base.read(obj::IO, ::Type{String}) = readstring(obj)
     Base.read(obj::AbstractString, ::Type{String}) = readstring(obj)
-    Base.read(obj::Cmd, ::Type{String}) = readstring(obj)
+    Base.read(obj::Base.AbstractCmd, ::Type{String}) = readstring(obj)
 end
 
 # https://github.com/JuliaLang/julia/pull/20005
diff --git a/test/runtests.jl b/test/runtests.jl
index cdeb89103..6acd0fc26 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -748,7 +748,10 @@ no_specialize_kw2(@nospecialize(x::Integer=0)) = sin(2)
 # 0.7
 @test read(IOBuffer("aaaa"), String) == "aaaa"
 @test occursin("read(@__FILE__, String)", read(@__FILE__, String))
-@test read(`$(Base.julia_cmd()) --startup-file=no -e "println(:aaaa)"`, String) == "aaaa\n"
+let cmd = `$(Base.julia_cmd()) --startup-file=no -e "println(:aaaa)"`
+    @test read(cmd, String) == "aaaa\n"
+    @test read(pipeline(cmd, stderr=devnull), String) == "aaaa\n"
+end
 
 # 0.7
 @test isa(1:2, AbstractRange)