diff --git a/service/lib/agama/config.rb b/service/lib/agama/config.rb
index 0ae3ee2d96..3b4c2ba811 100644
--- a/service/lib/agama/config.rb
+++ b/service/lib/agama/config.rb
@@ -168,6 +168,8 @@ def merge(config)
     #
     # @param keys [Array<Symbol|String>] Config data keys of the collection.
     # @param property [Symbol|String|nil] Property to retrieve of the elements.
+    # @param default [Object] The default value returned when the value is not
+    #   found or is not an array
     #
     # @return [Array]
     def arch_elements_from(*keys, property: nil, default: [])
diff --git a/service/lib/agama/software/product.rb b/service/lib/agama/software/product.rb
index 5f2cd72da8..509f6f0ea7 100644
--- a/service/lib/agama/software/product.rb
+++ b/service/lib/agama/software/product.rb
@@ -99,7 +99,7 @@ def initialize(id)
         @optional_packages = []
         @mandatory_patterns = []
         @optional_patterns = []
-        # nil = display all patterns, [] = display none patterns
+        # nil = display all patterns, [] = display no patterns
         @user_patterns = nil
         @translations = {}
       end