diff --git a/lib/fluent/plugin/in_exec.rb b/lib/fluent/plugin/in_exec.rb
index d288f19895..b62025c60f 100644
--- a/lib/fluent/plugin/in_exec.rb
+++ b/lib/fluent/plugin/in_exec.rb
@@ -45,7 +45,7 @@ class ExecInput < Fluent::Plugin::Input
     config_param :run_interval, :time, default: nil
     desc 'The default block size to read if parser requires partial read.'
     config_param :read_block_size, :size, default: 10240 # 10k
-    desc 'The encoding to receive the result of the command, especially for none-ascii characters.'
+    desc 'The encoding to receive the result of the command, especially for non-ascii characters.'
     config_param :encoding, :string, default: nil
 
     attr_reader :parser
diff --git a/test/plugin/test_in_exec.rb b/test/plugin/test_in_exec.rb
index 788120ce81..f7c9f6d705 100644
--- a/test/plugin/test_in_exec.rb
+++ b/test/plugin/test_in_exec.rb
@@ -221,7 +221,7 @@ def create_driver(conf)
   sub_test_case 'encoding' do
     data(immediate: "")
     data(run_interval: "run_interval 1")
-    test 'can handle none-ascii characters' do |additional_setting|
+    test 'can handle non-ascii characters' do |additional_setting|
       content = 'ひらがな漢字'
 
       d = create_driver %[