diff --git a/app/models/types_de_champ/drop_down_list_type_de_champ.rb b/app/models/types_de_champ/drop_down_list_type_de_champ.rb
index 039d437bb..eee0c03b8 100644
--- a/app/models/types_de_champ/drop_down_list_type_de_champ.rb
+++ b/app/models/types_de_champ/drop_down_list_type_de_champ.rb
@@ -12,6 +12,6 @@ class TypesDeChamp::DropDownListTypeDeChamp < TypesDeChamp::TypeDeChampBase
   end
 
   def champ_with_other_value?(champ)
-    drop_down_other? && champ.value_json['other']
+    drop_down_other? && champ.value_json&.fetch('other', false)
   end
 end