1 files changed, 9 insertions, 1 deletions
diff --git a/lib/gitlab/config/entry/configurable.rb b/lib/gitlab/config/entry/configurable.rb
index 37ba16dba25..6667a5d3d33 100644
--- a/lib/gitlab/config/entry/configurable.rb
+++ b/lib/gitlab/config/entry/configurable.rb
@@ -21,7 +21,7 @@ module Gitlab
           include Validatable
 
           validations do
-            validates :config, type: Hash
+            validates :config, type: Hash, unless: :skip_config_hash_validation?
           end
         end
 
@@ -30,6 +30,10 @@ module Gitlab
           return unless valid?
 
           self.class.nodes.each do |key, factory|
+            # If we override the config type validation
+            # we can end with different config types like String
+            next unless config.is_a?(Hash)
+
             factory
               .value(config[key])
               .with(key: key, parent: self)
@@ -45,6 +49,10 @@ module Gitlab
         end
         # rubocop: enable CodeReuse/ActiveRecord
 
+        def skip_config_hash_validation?
+          false
+        end
+
         class_methods do
           def nodes
             Hash[(@nodes || {}).map { |key, factory| [key, factory.dup] }]