diff --git a/lib/modules/summarization/models/anthropic.rb b/lib/modules/summarization/models/anthropic.rb
index 5c4d37d3..4c928706 100644
--- a/lib/modules/summarization/models/anthropic.rb
+++ b/lib/modules/summarization/models/anthropic.rb
@@ -75,6 +75,8 @@ module DiscourseAi
           ]
 
           base_prompt += "Don't use more than 400 words.\n" unless opts[:single_chunk]
+
+          base_prompt
         end
 
         def completion(prompt)