diff --git a/app/models/lettings_log.rb b/app/models/lettings_log.rb
index 552fbe27a..b1de54bbf 100644
--- a/app/models/lettings_log.rb
+++ b/app/models/lettings_log.rb
@@ -660,7 +660,7 @@ private
     num_of_weeks = NUM_OF_WEEKS_FROM_PERIOD[period]
     return "" unless value && num_of_weeks
 
-    (value * 52 / num_of_weeks)
+    format_as_currency((value * 52 / num_of_weeks))
   end
 
   def fully_wheelchair_accessible?