diff --git a/conservancy/views.py b/conservancy/views.py
index fe4de08d2d9a3e7fd37590cc7f7ce18778192b1c..21059710f9d131c2ca22a827bf4026c079f418a5 100644
--- a/conservancy/views.py
+++ b/conservancy/views.py
@@ -1,8 +1,7 @@
 import mimetypes
 
 from django.conf import settings
-from django.http import Http404
-from django.http import FileResponse
+from django.http import FileResponse, Http404, HttpResponseRedirect
 from django.template.response import TemplateResponse
 
 from .local_context_processors import fundgoal_lookup
@@ -35,7 +34,10 @@ def index(request, *args, **kwargs):
         path += 'index.html'
     full_path = (base_path / path).resolve()
     safe_from_path_traversal = full_path.is_relative_to(base_path)
-    if not full_path.exists() or not safe_from_path_traversal:
+    if full_path.is_dir():
+        # Should have been accessed with a trailing slash.
+        return HttpResponseRedirect(request.path + '/')
+    elif not full_path.exists() or not safe_from_path_traversal:
         raise Http404()
     is_template = mimetypes.guess_type(full_path)[0] == 'text/html'
     if not is_template: