6 files changed, 6 insertions, 0 deletions
diff --git a/lib/webrick/httpservlet/abstract.rb b/lib/webrick/httpservlet/abstract.rb
index d3b00ab4e1..ee558eb026 100644
--- a/lib/webrick/httpservlet/abstract.rb
+++ b/lib/webrick/httpservlet/abstract.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 # httpservlet.rb -- HTTPServlet Module
 #
diff --git a/lib/webrick/httpservlet/cgi_runner.rb b/lib/webrick/httpservlet/cgi_runner.rb
index 32ecb6fe00..597f48936b 100644
--- a/lib/webrick/httpservlet/cgi_runner.rb
+++ b/lib/webrick/httpservlet/cgi_runner.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 # cgi_runner.rb -- CGI launcher.
 #
diff --git a/lib/webrick/httpservlet/cgihandler.rb b/lib/webrick/httpservlet/cgihandler.rb
index 32100418e6..051bb7cfcc 100644
--- a/lib/webrick/httpservlet/cgihandler.rb
+++ b/lib/webrick/httpservlet/cgihandler.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 # cgihandler.rb -- CGIHandler Class
 #
diff --git a/lib/webrick/httpservlet/erbhandler.rb b/lib/webrick/httpservlet/erbhandler.rb
index 1b8a82d67b..9bcec69883 100644
--- a/lib/webrick/httpservlet/erbhandler.rb
+++ b/lib/webrick/httpservlet/erbhandler.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 # erbhandler.rb -- ERBHandler Class
 #
diff --git a/lib/webrick/httpservlet/filehandler.rb b/lib/webrick/httpservlet/filehandler.rb
index cc9db4a870..068246c9d0 100644
--- a/lib/webrick/httpservlet/filehandler.rb
+++ b/lib/webrick/httpservlet/filehandler.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 # filehandler.rb -- FileHandler Module
 #
diff --git a/lib/webrick/httpservlet/prochandler.rb b/lib/webrick/httpservlet/prochandler.rb
index 2f5aa66f45..c1f454e2f6 100644
--- a/lib/webrick/httpservlet/prochandler.rb
+++ b/lib/webrick/httpservlet/prochandler.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 # prochandler.rb -- ProcHandler Class
 #