diff --git a/lib/flickwerk/patch_finder.rb b/lib/flickwerk/patch_finder.rb
index ec18090..86fd047 100644
--- a/lib/flickwerk/patch_finder.rb
+++ b/lib/flickwerk/patch_finder.rb
@@ -2,7 +2,7 @@
 
 module Flickwerk
   class PatchFinder
-    DECORATED_CLASS_PATTERN = /(?:::)?(?<decorated_class>[\w.:]+?)(?:\.singleton_class)?\.prepend[\s(]/
+    DECORATED_CLASS_PATTERN = /(?:::)?(?<decorated_class>[A-Z][\w.:]+?)(?:\.singleton_class)?\.prepend[\s(]/
 
     attr_reader :path, :autoloader
 
diff --git a/test/dummy_app/app/patches/models/page_patch.rb b/test/dummy_app/app/patches/models/page_patch.rb
index 57270f1..00edc00 100644
--- a/test/dummy_app/app/patches/models/page_patch.rb
+++ b/test/dummy_app/app/patches/models/page_patch.rb
@@ -1,7 +1,17 @@
 module PagePatch
+  def self.prepended(base)
+    base.prepend(InstanceMethods)
+  end
+
   def title
     "Changed from Host app"
   end
 
+  module InstanceMethods
+    def name
+      "Homepage"
+    end
+  end
+
   ::DummyCms::Page.prepend(self)
 end
diff --git a/test/test_flickwerk.rb b/test/test_flickwerk.rb
index b9b47fa..45e3bdd 100644
--- a/test/test_flickwerk.rb
+++ b/test/test_flickwerk.rb
@@ -76,4 +76,13 @@ def boot
     assert User
     assert "The outer rim", User.address
   end
+
+  test "prepended base class can be prepended" do
+    require "dummy_cms"
+
+    boot
+
+    assert DummyCms::Page
+    assert_equal [], Flickwerk.patches["base"]
+  end
 end