diff --git a/src/plugins/documenter.jl b/src/plugins/documenter.jl
index 81a1192..1e2119f 100644
--- a/src/plugins/documenter.jl
+++ b/src/plugins/documenter.jl
@@ -46,7 +46,7 @@ function gen_plugin(p::Documenter, t::Template, pkg_name::AbstractString)
         "[]"
     end
 
-    kwargs_string = if in(:additional_kwargs, fieldnames(typeof(p))) &&
+    kwargs_string = if :additional_kwargs in fieldnames(typeof(p)) &&
         fieldtype(typeof(p), :additional_kwargs) <: Union{AbstractDict, NamedTuple}
         # We want something that looks like the following:
         #     key1="val1",
diff --git a/test/tests.jl b/test/tests.jl
index 666d630..f702fea 100644
--- a/test/tests.jl
+++ b/test/tests.jl
@@ -408,10 +408,7 @@ end
     pkg_dir = joinpath(t.dir, test_pkg)
 
     function check_kwargs(kwargs, warn_str)
-        p = Qux(
-            [],
-            kwargs
-        )
+        p = Qux([], kwargs)
         @test_logs (:warn, warn_str) gen_plugin(p, t, test_pkg)
 
         make = readchomp(joinpath(pkg_dir, "docs", "make.jl"))