diff --git a/lib/nimble_options.ex b/lib/nimble_options.ex
index 4c00ad3..1653f0f 100644
--- a/lib/nimble_options.ex
+++ b/lib/nimble_options.ex
@@ -898,7 +898,7 @@ defmodule NimbleOptions do
         keys
 
       schema_opts ->
-        Enum.map(opts, fn {k, _} -> {k, schema_opts} end)
+        keys ++ Enum.map(opts, fn {k, _} -> {k, schema_opts} end)
     end
   end
 
diff --git a/test/nimble_options_test.exs b/test/nimble_options_test.exs
index 72c487e..39d319b 100644
--- a/test/nimble_options_test.exs
+++ b/test/nimble_options_test.exs
@@ -93,6 +93,11 @@ defmodule NimbleOptionsTest do
       assert NimbleOptions.validate([context: :given], schema) == {:ok, [context: :given]}
     end
 
+    test "is used when wildcard-key is defined" do
+      schema = [context: [default: :ok], *: [type: :any]]
+      assert NimbleOptions.validate([], schema) == {:ok, [context: :ok]}
+    end
+
     test "is validated" do
       schema = [
         processors: [