diff --git a/compressor/test_settings.py b/compressor/test_settings.py
index d10e02d..abda256 100644
--- a/compressor/test_settings.py
+++ b/compressor/test_settings.py
@@ -23,6 +23,7 @@ INSTALLED_APPS = [
     'compressor',
     'coffin',
     'sekizai',
+    'overextends',
 ]
 if django.VERSION < (1, 8):
     INSTALLED_APPS.append('jingo')
diff --git a/compressor/tests/test_offline.py b/compressor/tests/test_offline.py
index 71f91c0..4549707 100644
--- a/compressor/tests/test_offline.py
+++ b/compressor/tests/test_offline.py
@@ -517,3 +517,10 @@ class OfflineGenerationJingoTestCase(OfflineTestCaseMixin, TestCase):
         env.globals['url_for'] = url_for
 
         return env
+
+
+class OfflineGenerationOverextendsTestCase(OfflineTestCaseMixin, TestCase):
+    templates_dir = "test_overextends"
+    expected_hash = "e993b2a53994"
+    # overextends not supported for Jinja2 yet.
+    engines = ("django",)
diff --git a/compressor/tests/test_templates/test_overextends/base.html b/compressor/tests/test_templates/test_overextends/base.html
new file mode 100644
index 0000000..1406ac4
--- /dev/null
+++ b/compressor/tests/test_templates/test_overextends/base.html
@@ -0,0 +1,7 @@
+{% load compress %}{% spaceless %}
+{% compress js %}
+    <script type="text/javascript">
+        alert("test overextends");
+    </script>
+{% endcompress %}
+{% endspaceless %}
diff --git a/compressor/tests/test_templates/test_overextends/test_compressor_offline.html b/compressor/tests/test_templates/test_overextends/test_compressor_offline.html
new file mode 100644
index 0000000..c731be0
--- /dev/null
+++ b/compressor/tests/test_templates/test_overextends/test_compressor_offline.html
@@ -0,0 +1 @@
+{% overextends "base.html" %}
diff --git a/requirements/tests.txt b/requirements/tests.txt
index 3985c54..b3d1525 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -9,3 +9,4 @@ unittest2==1.0.0
 coffin==0.4.0
 jingo==0.7
 django-sekizai==0.8.2
+django-overextends==0.4.0