diff --git a/app/lib/text_formatter.rb b/app/lib/text_formatter.rb
index 91c0ac1273..39a0c060fd 100644
--- a/app/lib/text_formatter.rb
+++ b/app/lib/text_formatter.rb
@@ -202,6 +202,10 @@ class TextFormatter
       text.include?(':') ? nil : '<u>' + text + '</u>'
     end
 
+    def image(link, title, alt_text)
+      nil
+    end
+
     private
 
     def process_program_code(code)