7 files changed, 7 insertions, 0 deletions
diff --git a/lib/irb/cmd/chws.rb b/lib/irb/cmd/chws.rb
index 8c0260627e..606e0c52a9 100644
--- a/lib/irb/cmd/chws.rb
+++ b/lib/irb/cmd/chws.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 #   change-ws.rb -
 #   	$Release Version: 0.9.6$
diff --git a/lib/irb/cmd/fork.rb b/lib/irb/cmd/fork.rb
index 1e02edac63..552c3962f6 100644
--- a/lib/irb/cmd/fork.rb
+++ b/lib/irb/cmd/fork.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 #   fork.rb -
 #   	$Release Version: 0.9.6 $
diff --git a/lib/irb/cmd/help.rb b/lib/irb/cmd/help.rb
index 76e299fc20..7a09c396e1 100644
--- a/lib/irb/cmd/help.rb
+++ b/lib/irb/cmd/help.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 #   help.rb - helper using ri
 #   	$Release Version: 0.9.6$
diff --git a/lib/irb/cmd/load.rb b/lib/irb/cmd/load.rb
index acda9d0c8c..e3b84dad79 100644
--- a/lib/irb/cmd/load.rb
+++ b/lib/irb/cmd/load.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 #   load.rb -
 #   	$Release Version: 0.9.6$
diff --git a/lib/irb/cmd/nop.rb b/lib/irb/cmd/nop.rb
index 60379f016a..9cf4337c28 100644
--- a/lib/irb/cmd/nop.rb
+++ b/lib/irb/cmd/nop.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 #   nop.rb -
 #   	$Release Version: 0.9.6$
diff --git a/lib/irb/cmd/pushws.rb b/lib/irb/cmd/pushws.rb
index 0726a4377e..aa14430ce4 100644
--- a/lib/irb/cmd/pushws.rb
+++ b/lib/irb/cmd/pushws.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #
 #   change-ws.rb -
 #   	$Release Version: 0.9.6$
diff --git a/lib/irb/cmd/subirb.rb b/lib/irb/cmd/subirb.rb
index ccf4fc4bcd..f29548b88f 100644
--- a/lib/irb/cmd/subirb.rb
+++ b/lib/irb/cmd/subirb.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 #   multi.rb -
 #   	$Release Version: 0.9.6$
 #   	$Revision$