diff --git a/api/libretime_api/storage/views/file.py b/api/libretime_api/storage/views/file.py
index 70d85e4fc..2341b5c2a 100644
--- a/api/libretime_api/storage/views/file.py
+++ b/api/libretime_api/storage/views/file.py
@@ -2,6 +2,7 @@ import os
 
 from django.http import HttpResponse
 from django.shortcuts import get_object_or_404
+from django.utils.encoding import iri_to_uri
 from rest_framework import viewsets
 from rest_framework.decorators import action
 from rest_framework.serializers import IntegerField
@@ -23,5 +24,9 @@ class FileViewSet(viewsets.ModelViewSet):
 
         response = HttpResponse()
         response["Content-Type"] = file.mime
-        response["X-Accel-Redirect"] = os.path.join("/api/_media", file.filepath)
+
+        # HTTP headers must be USASCII encoded, or Nginx might not find the file and
+        # will return a 404.
+        redirect_uri = iri_to_uri(os.path.join("/api/_media", file.filepath))
+        response["X-Accel-Redirect"] = redirect_uri
         return response