diff --git a/app/models/rule_country.rb b/app/models/rule_country.rb
index eb5485e4f..66e769417 100644
--- a/app/models/rule_country.rb
+++ b/app/models/rule_country.rb
@@ -1,3 +1,5 @@
 class RuleCountry < ApplicationRecord
   belongs_to :tool_group
+  
+  validates :tool_group_id, uniqueness: { scope: [:countries, :negative_rule], message: "combination already exists" }
 end
diff --git a/app/models/rule_language.rb b/app/models/rule_language.rb
index cef79d79f..c73879ba2 100644
--- a/app/models/rule_language.rb
+++ b/app/models/rule_language.rb
@@ -1,3 +1,5 @@
 class RuleLanguage < ApplicationRecord
   belongs_to :tool_group
+
+  validates :tool_group_id, uniqueness: { scope: [:languages, :negative_rule], message: "combination already exists" }
 end