diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78ca0916a..bad627a04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - adds a migrations to fix all statistic_sub_types of plans having label = nil
 - Fix a bug: unable to show wallet payment mean for avoir
 - updates spanish translations
+- Fix a bug: avoids crash due to oidc config with scope = nil
 
 ## v6.3.0 2023 November 3
 
diff --git a/lib/provider_config.rb b/lib/provider_config.rb
index 7d014e56f..df827d16f 100644
--- a/lib/provider_config.rb
+++ b/lib/provider_config.rb
@@ -20,7 +20,7 @@ class ProviderConfig
 
     (@config[:providable_attributes].keys.filter { |n| !n.start_with?('client__') && n != 'profile_url' }.map do |n|
       val = @config[:providable_attributes][n]
-      val.join(' ') if n == 'scope'
+      val&.join(' ') if n == 'scope'
       [n, val]
     end).push(
       ['client_options', @config[:providable_attributes].keys.filter { |n| n.start_with?('client__') }.to_h do |n|