diff --git a/incorporealcms/ssg.py b/incorporealcms/ssg.py
index 7770a59..a175039 100644
--- a/incorporealcms/ssg.py
+++ b/incorporealcms/ssg.py
@@ -18,7 +18,7 @@ from incorporealcms.markdown import handle_markdown_file_path
 class StaticSiteGenerator(object):
     """Generate static site output based on the instance's content."""
 
-    def __init__(self, instance_dir: str, output_dir: str):
+    def __init__(self, instance_dir: str, output_dir: str, extra_config=None):
         """Create the object to run various operations to generate the static site.
 
         Args:
@@ -32,7 +32,7 @@ class StaticSiteGenerator(object):
         output_dir = os.path.abspath(output_dir)
 
         # initialize configuration with the path to the instance
-        init_instance(instance_dir)
+        init_instance(instance_dir, extra_config)
 
     def build(self):
         """Build the whole static site."""
diff --git a/tests/functional_markdown_tests.py b/tests/functional_markdown_tests.py
index fce2465..915612d 100644
--- a/tests/functional_markdown_tests.py
+++ b/tests/functional_markdown_tests.py
@@ -37,10 +37,10 @@ def test_invalid_graphviz_is_not_rendered():
     with tempfile.TemporaryDirectory() as tmpdir:
         src_dir = os.path.join(HERE, 'instance')
         ssg = StaticSiteGenerator(src_dir, tmpdir)
-        os.chdir(os.path.join(src_dir, 'pages'))
+        os.chdir(os.path.join(src_dir, 'broken'))
 
         with pytest.raises(ValueError):
-            ssg.build_file_in_destination(os.path.join(HERE, 'instance', 'pages'), '', 'test-invalid-graphviz.md',
+            ssg.build_file_in_destination(os.path.join(HERE, 'instance', 'broken'), '', 'test-invalid-graphviz.md',
                                           tmpdir, True)
     os.chdir(HERE)
 
diff --git a/tests/instance/pages/test-invalid-graphviz.md b/tests/instance/broken/test-invalid-graphviz.md
similarity index 100%
rename from tests/instance/pages/test-invalid-graphviz.md
rename to tests/instance/broken/test-invalid-graphviz.md