diff --git a/bookwyrm/templates/snippets/shelve_button/shelve_button.html b/bookwyrm/templates/snippets/shelve_button/shelve_button.html
index 98edac6a..825eabb1 100644
--- a/bookwyrm/templates/snippets/shelve_button/shelve_button.html
+++ b/bookwyrm/templates/snippets/shelve_button/shelve_button.html
@@ -3,7 +3,7 @@
 {% load cache %}
 
 {% if request.user.is_authenticated %}
-{% cache 900 shelve_button request.user.id book.id %}
+{% cache shelve_button request.user.id book.id %}
 
 {% with book.id|uuid as uuid %}
 {% active_shelf book as active_shelf %}
diff --git a/bookwyrm/views/reading.py b/bookwyrm/views/reading.py
index 6531efc2..73bc0b83 100644
--- a/bookwyrm/views/reading.py
+++ b/bookwyrm/views/reading.py
@@ -47,7 +47,9 @@ class ReadingStatus(View):
             return HttpResponseBadRequest()
 
         # invalidate the template cache
-        cache_key = make_template_fragment_key("shelve_button", [request.user.id, book_id])
+        cache_key = make_template_fragment_key(
+            "shelve_button", [request.user.id, book_id]
+        )
         cache.delete(cache_key)
 
         desired_shelf = get_object_or_404(