diff --git a/src/structarray.jl b/src/structarray.jl
index 0f13ad4..187850d 100644
--- a/src/structarray.jl
+++ b/src/structarray.jl
@@ -290,13 +290,14 @@ for type in (
         :(Tuple{Union{Integer, AbstractUnitRange}, Vararg{Union{Integer, AbstractUnitRange}}}),
         # disambiguation with Base
         :(Tuple{Union{Integer, Base.OneTo}, Vararg{Union{Integer, Base.OneTo}}}),
+        :(Tuple{Integer, Vararg{Integer}}),
     )
     @eval function Base.similar(::Type{<:StructArray{T, N, C}}, sz::$(type)) where {T, N, C}
         return buildfromschema(typ -> similar(typ, sz), T, C)
     end
 
-    @eval function Base.similar(s::StructArray, S::Type, sz::$(type))
-        return _similar(s, S, sz)
+    @eval function Base.similar(s::StructArray, ::Type{T}, sz::$(type)) where {T}
+        return _similar(s, T, sz)
     end
 end
 
@@ -471,8 +472,9 @@ for type in (
         # mimic OffsetArrays signature
         :(Tuple{Union{Integer, AbstractUnitRange, Colon}, Vararg{Union{Integer, AbstractUnitRange, Colon}}}),
         # disambiguation with Base
+        :(Tuple{Integer, Vararg{Integer}}),
         :(Tuple{Union{Integer, Base.OneTo}, Vararg{Union{Integer, Base.OneTo}}}),
-        :(Tuple{Vararg{Union{Colon, Integer}}}),
+        :(Tuple{Union{Colon, Integer}, Vararg{Union{Colon, Integer}}}),
         :(Tuple{Vararg{Union{Colon, Int}}}),
         :(Tuple{Colon}),
     )
diff --git a/test/runtests.jl b/test/runtests.jl
index 0a57817..64deb02 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -396,6 +396,10 @@ end
     @test s isa Matrix{Float32}
     @test size(s) == (2, 2)
 
+    s = similar(t, Float32, (Int8(2), 2))
+    @test s isa Matrix{Float32}
+    @test size(s) == (2, 2)
+
     s = similar(t, Float32, 0:1, 2)
     @test s isa OffsetMatrix{Float32, Matrix{Float32}}
     @test axes(s) == (0:1, 1:2)
@@ -1043,6 +1047,8 @@ end
     @test rs.a == [1 3; 2 4]
     @test rs.b == ["a" "c"; "b" "d"]
 
+    @test reshape(s, (Int8(2), 2)) == reshape(s, (2, 2))
+
     rs = reshape(s, (:,))
     @test rs.a == s.a
     @test rs.b == s.b
@@ -1630,5 +1636,5 @@ end
 end
 
 @testset "project quality" begin
-    Aqua.test_all(StructArrays, ambiguities=(; broken=true))
+    Aqua.test_all(StructArrays)
 end