diff --git a/app/models/dotation.rb b/app/models/dotation.rb
index 3e72351..ef7492e 100644
--- a/app/models/dotation.rb
+++ b/app/models/dotation.rb
@@ -113,6 +113,8 @@ class Dotation < ApplicationRecord
   # == Instance Methods =====================================================
 
   def start_date_ret
+    return if start_date.blank?
+
     if start_date_quarter.eql?(true)
       Dotation.display_as_quarter(start_date)
     else
@@ -121,6 +123,8 @@ class Dotation < ApplicationRecord
   end
 
   def end_date_ret
+    return if end_date.blank?
+
     if end_date_quarter.eql?(true)
       Dotation.display_as_quarter(end_date)
     else
@@ -129,6 +133,8 @@ class Dotation < ApplicationRecord
   end
 
   def ann_date_ret
+    return if announcement_date.blank?
+
     if ann_date_quarter.eql?(true)
       Dotation.display_as_quarter(announcement_date)
     else