diff --git a/openslides/motions/pdf.py b/openslides/motions/pdf.py
index bf15915bd..744509e64 100644
--- a/openslides/motions/pdf.py
+++ b/openslides/motions/pdf.py
@@ -1,7 +1,6 @@
 import random
 import re
 from html import escape
-from operator import attrgetter
 
 from bs4 import BeautifulSoup
 from django.conf import settings
@@ -22,7 +21,7 @@ def motions_to_pdf(pdf, motions):
     """
     Create a PDF with all motions.
     """
-    motions = natsorted(motions, key=attrgetter('identifier'))
+    motions = natsorted(motions, key=lambda motion: motion.identifier or '')
     all_motion_cover(pdf, motions)
     for motion in motions:
         pdf.append(PageBreak())
diff --git a/tests/integration/motions/test_pdf.py b/tests/integration/motions/test_pdf.py
new file mode 100644
index 000000000..87c3ffd11
--- /dev/null
+++ b/tests/integration/motions/test_pdf.py
@@ -0,0 +1,28 @@
+from django.core.urlresolvers import reverse
+from rest_framework import status
+
+from openslides.core.config import config
+from openslides.motions.models import Motion
+from openslides.utils.test import TestCase
+
+
+class AllMotionPDF(TestCase):
+    """
+    Tests creating a PDF of all motions.
+    """
+    def setUp(self):
+        self.client.login(username='admin', password='admin')
+        config['motions_identifier'] = 'manually'
+        self.motion = Motion(
+            title='test_title_Dik4jaey5ku6axee7Dai',
+            text='test_text_Auvie4euf2oang8ahcie')
+        self.motion.save()
+        self.motion2 = Motion(
+            title='test_title_AeTheech6euf9siM8uey',
+            text='test_text_Cohsh2egaexae8eebiot',
+            identifier='42')
+        self.motion2.save()
+
+    def test_pdf_all_motions(self):
+        response = self.client.get(reverse('motions_pdf'))
+        self.assertEqual(response.status_code, status.HTTP_200_OK)