diff -ur Flask-Themes-0.1.3.orig/tests/test-themes.py Flask-Themes-0.1.3/tests/test-themes.py
--- tests/test-themes.py	2011-07-14 06:36:33.000000000 +0800
+++ tests/test-themes.py	2013-06-10 18:20:25.901480529 +0800
@@ -129,8 +129,8 @@
         
         with app.test_request_context('/'):
             assert template_exists('hello.html')
-            assert template_exists('_themes/cool/hello.html')
-            assert not template_exists('_themes/plain/hello.html')
+            assert template_exists('cool/hello.html')
+            assert not template_exists('themes/plain/hello.html')
     
     def test_loader(self):
         app = Flask(__name__)
@@ -140,7 +140,7 @@
         with app.test_request_context('/'):
             if USING_BLUEPRINTS:
                 src = themes_blueprint.jinja_loader.get_source(
-                    app.jinja_env, '_themes/cool/hello.html'
+                    app.jinja_env, 'cool/hello.html'
                 )
             else:
                 src = themes_mod.jinja_loader.get_source(