diff --git a/django/core/template/defaultfilters.py b/django/core/template/defaultfilters.py
index 5d87b62e57..c9a5ff931b 100644
--- a/django/core/template/defaultfilters.py
+++ b/django/core/template/defaultfilters.py
@@ -455,7 +455,7 @@ register.filter(pprint)
 register.filter(removetags)
 register.filter(random)
 register.filter(rjust)
-register.filter(slice_)
+register.filter('slice', slice_)
 register.filter(slugify)
 register.filter(stringformat)
 register.filter(striptags)