diff --git a/bin/fluent-ca-generate b/bin/fluent-ca-generate
index c2d80c546f..6037c7fce3 100755
--- a/bin/fluent-ca-generate
+++ b/bin/fluent-ca-generate
@@ -1,7 +1,6 @@
 #!/usr/bin/env ruby
 
 $LOAD_PATH.unshift(File.join(__dir__, 'lib'))
-require 'fileutils'
 require 'fluent/command/ca_generate'
 
 Fluent::CaGenerate.new.call
diff --git a/lib/fluent/command/ca_generate.rb b/lib/fluent/command/ca_generate.rb
index c805ba7483..74b67afc3f 100644
--- a/lib/fluent/command/ca_generate.rb
+++ b/lib/fluent/command/ca_generate.rb
@@ -1,5 +1,6 @@
 require 'openssl'
 require 'optparse'
+require 'fileutils'
 
 module Fluent
   class CaGenerate