diff --git a/test/stdlib/YAML_test.rb b/test/stdlib/YAML_test.rb
new file mode 100644
index 0000000000..11552e439a
--- /dev/null
+++ b/test/stdlib/YAML_test.rb
@@ -0,0 +1,12 @@
+require_relative "test_helper"
+require 'yaml'
+
+class YAMLTest < Minitest::Test
+  include TypeAssertions
+  library 'yaml'
+  testing 'singleton(::YAML)'
+
+  def test_load_accepts_string
+    assert_send_type  "(String) -> untyped", YAML, :load, "abcde"
+  end
+end