diff --git a/taiga/projects/attachments/models.py b/taiga/projects/attachments/models.py
index c95c0f6b..5619bf68 100644
--- a/taiga/projects/attachments/models.py
+++ b/taiga/projects/attachments/models.py
@@ -27,16 +27,14 @@ from django.contrib.contenttypes import generic
 from django.utils import timezone
 from django.utils.encoding import force_bytes
 from django.utils.translation import ugettext_lazy as _
-from django.template.defaultfilters import slugify
+from django.utils.text import get_valid_filename
 
 from taiga.base.utils.iterators import split_by_n
 
 
 def get_attachment_file_path(instance, filename):
     basename = path.basename(filename).lower()
-    base, ext = path.splitext(basename)
-    base = slugify(unidecode(base))
-    basename = "".join([base, ext])
+    basename = get_valid_filename(basename)
 
     hs = hashlib.sha256()
     hs.update(force_bytes(timezone.now().isoformat()))