diff --git a/base/reflection.jl b/base/reflection.jl
index 77de6bdf36cb6..58d9b67e19177 100644
--- a/base/reflection.jl
+++ b/base/reflection.jl
@@ -340,7 +340,7 @@ fieldoffset(x::DataType, idx::Integer) = (@_pure_meta; ccall(:jl_get_field_offse
 Determine the declared type of a field (specified by name or index) in a composite DataType `T`.
 
 ```jldoctest
-julia> immutable Foo
+julia> struct Foo
            x::Int64
            y::String
        end
@@ -361,7 +361,7 @@ Get the index of a named field, throwing an error if the field does not exist (w
 or returning 0 (when err==false).
 
 ```jldoctest
-julia> immutable Foo
+julia> struct Foo
            x::Int64
            y::String
        end
diff --git a/doc/src/manual/modules.md b/doc/src/manual/modules.md
index cc8cfe7463447..bbd6b4248b1f6 100644
--- a/doc/src/manual/modules.md
+++ b/doc/src/manual/modules.md
@@ -21,7 +21,7 @@ importall OtherLib
 
 export MyType, foo
 
-type MyType
+struct MyType
     x
 end
 
diff --git a/examples/queens.jl b/examples/queens.jl
index 418637a2be8db..e44e2fd2c083b 100644
--- a/examples/queens.jl
+++ b/examples/queens.jl
@@ -2,7 +2,7 @@
 
 # n-queens (nqueens) solver, for nsquaresx-by-nsquaresy board
 
-immutable Queen
+struct Queen
     x::Int
     y::Int
 end
diff --git a/test/core.jl b/test/core.jl
index 5b391e02eedad..487ae7edff2a3 100644
--- a/test/core.jl
+++ b/test/core.jl
@@ -4896,7 +4896,7 @@ foo21568()
 @test f21568([0]) == 1
 
 # issue #21719
-type T21719{V}
+mutable struct T21719{V}
     f
     tol::Float64
     goal::V
diff --git a/test/inference.jl b/test/inference.jl
index 318e33c4e552b..a9e846b91229b 100644
--- a/test/inference.jl
+++ b/test/inference.jl
@@ -740,7 +740,7 @@ let e = code_typed(f21175, ())[1].first.code[1]::Expr
 end
 
 # issue #10207
-type T10207{A, B}
+mutable struct T10207{A, B}
     a::A
     b::B
 end
diff --git a/test/sparse/sparsevector.jl b/test/sparse/sparsevector.jl
index 6b8f20eaf0afa..543b7668160fd 100644
--- a/test/sparse/sparsevector.jl
+++ b/test/sparse/sparsevector.jl
@@ -1124,7 +1124,7 @@ end
 @test issparse([sprand(10,.1); rand(10)])
 
 
-type t20488 end
+mutable struct t20488 end
 
 @testset "similar" begin
     x = sparsevec(rand(3) .+ 0.1)
diff --git a/test/subtype.jl b/test/subtype.jl
index 7233b9054e05f..2c74f70ffc4bd 100644
--- a/test/subtype.jl
+++ b/test/subtype.jl
@@ -1102,7 +1102,7 @@ end
 
 # issue #21613
 abstract type A21613{S <: Tuple} end
-immutable B21613{S <: Tuple, L} <: A21613{S}
+struct B21613{S <: Tuple, L} <: A21613{S}
     data::NTuple{L,Float64}
 end
 @testintersect(Tuple{Type{B21613{Tuple{L},L}} where L, Any},