diff --git a/filters/need_kconfig.rb b/filters/need_kconfig.rb
index abce38ee4..832cb0cb1 100755
--- a/filters/need_kconfig.rb
+++ b/filters/need_kconfig.rb
@@ -6,6 +6,7 @@
 require 'ostruct'
 require "#{LKP_SRC}/lib/kernel_tag"
 require "#{LKP_SRC}/lib/log"
+require "#{LKP_SRC}/lib/ruby_ext"
 
 def load_kernel_context
   context_file = File.expand_path '../context.yaml', kernel
diff --git a/lib/lkp_pattern.rb b/lib/lkp_pattern.rb
index dfc20becb..84a68e945 100755
--- a/lib/lkp_pattern.rb
+++ b/lib/lkp_pattern.rb
@@ -5,6 +5,7 @@
 require 'active_support/core_ext/string'
 require "#{LKP_SRC}/lib/yaml"
 require "#{LKP_SRC}/lib/lkp_path"
+require "#{LKP_SRC}/lib/ruby_ext"
 
 module LKP
   class Pattern
diff --git a/lib/ruby_ext.rb b/lib/ruby_ext.rb
new file mode 100755
index 000000000..a26bff55b
--- /dev/null
+++ b/lib/ruby_ext.rb
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+
+if RUBY_VERSION < '2.4'
+  class Hash
+    def transform_values
+      map { |k, v| [ k, yield v ] }.to_h
+    end
+  end
+end