diff --git a/Project.toml b/Project.toml
index 29d085ac..b9245959 100644
--- a/Project.toml
+++ b/Project.toml
@@ -12,6 +12,7 @@ Tables = "bd369af6-aec1-5ad0-b16a-f7cc5008161c"
 
 [compat]
 Adapt = "1, 2, 3"
+Aqua = "0.7"
 ConstructionBase = "1"
 DataAPI = "1"
 GPUArraysCore = "0.1.2"
@@ -21,6 +22,7 @@ Tables = "1"
 julia = "1.6"
 
 [extras]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 JLArrays = "27aeb0d3-9eb9-45fb-866b-73c2ecf80fcb"
 OffsetArrays = "6fe1bfb0-de20-5000-8ca7-80f57d26f881"
@@ -32,4 +34,4 @@ TypedTables = "9d95f2ec-7b3d-5a63-8d20-e2491e220bb9"
 WeakRefStrings = "ea10d353-3f73-51f8-a26c-33c1cb351aa5"
 
 [targets]
-test = ["Test", "JLArrays", "StaticArrays", "OffsetArrays", "PooledArrays", "TypedTables", "WeakRefStrings", "Documenter", "SparseArrays"]
+test = ["Aqua", "Test", "JLArrays", "StaticArrays", "OffsetArrays", "PooledArrays", "TypedTables", "WeakRefStrings", "Documenter", "SparseArrays"]
diff --git a/src/structarray.jl b/src/structarray.jl
index ee361c39..e77e5951 100644
--- a/src/structarray.jl
+++ b/src/structarray.jl
@@ -289,12 +289,13 @@ 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::$(type))
+    @eval function Base.similar(s::StructArray, S::Type{T}, sz::$(type)) where T
         return _similar(s, S, sz)
     end
 end
@@ -469,8 +470,10 @@ for type in (
         :(Tuple{Union{Integer, AbstractUnitRange, Colon}, Vararg{Union{Integer, AbstractUnitRange, Colon}}}),
         # disambiguation with Base
         :(Tuple{Union{Integer, Base.OneTo}, Vararg{Union{Integer, Base.OneTo}}}),
+        :(Tuple{Union{Colon, Integer}, Vararg{Union{Colon, Integer}}}),
         :(Tuple{Vararg{Union{Colon, Integer}}}),
         :(Tuple{Vararg{Union{Colon, Int}}}),
+        :(Tuple{Integer, Vararg{Integer}}),
         :(Tuple{Colon}),
     )
     @eval function Base.reshape(s::StructArray{T}, d::$(type)) where {T}
diff --git a/test/Aqua.jl b/test/Aqua.jl
new file mode 100644
index 00000000..79995332
--- /dev/null
+++ b/test/Aqua.jl
@@ -0,0 +1,5 @@
+using Aqua
+
+@testset "Aqua.jl" begin
+    Aqua.test_all(StructArrays)
+end
diff --git a/test/runtests.jl b/test/runtests.jl
index 85a3637d..5ef28321 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -16,6 +16,8 @@ if Base.VERSION >= v"1.6" && Int === Int64
     doctest(StructArrays)
 end
 
+include("Aqua.jl")
+
 # Most types should not be viewed as equivalent merely
 # because they have the same field names. (Exception:
 # NamedTuples are distinguished only by field names, so they