diff --git a/openslides/motion/views.py b/openslides/motion/views.py
index 771d94e1d..8512681de 100644
--- a/openslides/motion/views.py
+++ b/openslides/motion/views.py
@@ -721,7 +721,7 @@ class MotionPDFView(SingleObjectMixin, PDFView):
             return _("Motions")
         else:
             if self.object.identifier:
-                suffix = self.object.identifier
+                suffix = self.object.identifier.replace(' ', '')
             else:
                 suffix = self.object.title.replace(' ', '_')
                 suffix = slugify(suffix)