diff --git a/lib/diaspora/redis_cache.rb b/lib/diaspora/redis_cache.rb
index 4a10594df..6a5ef0018 100644
--- a/lib/diaspora/redis_cache.rb
+++ b/lib/diaspora/redis_cache.rb
@@ -79,7 +79,7 @@ class RedisCache
   # exposing the need to tie cache to a stream
   # @return [Array<String>] Acceptable Post types for the given cache
   def self.acceptable_types
-    AspectStream::TYPES_OF_POST_IN_STREAM
+    ::AspectStream::TYPES_OF_POST_IN_STREAM
   end
 
   protected