diff --git a/lib/carrierwave/uploader/versions.rb b/lib/carrierwave/uploader/versions.rb
index 60901c742..5544e50bb 100644
--- a/lib/carrierwave/uploader/versions.rb
+++ b/lib/carrierwave/uploader/versions.rb
@@ -250,11 +250,11 @@ def reset_versions_to_cache_and_store
       end
 
       def versions_to_cache
-        @versions_to_cache || dependent_versions
+        @versions_to_cache ||= dependent_versions
       end
 
       def versions_to_store
-        @versions_to_store || active_versions
+        @versions_to_store ||= active_versions
       end
 
       def source_versions_of(requested_names)