diff --git a/lib/securerandom.rb b/lib/securerandom.rb
index 241fde98ce..323d4af3b7 100644
--- a/lib/securerandom.rb
+++ b/lib/securerandom.rb
@@ -31,7 +31,7 @@
 # * uuid
 #
 # These methods are usable as class methods of SecureRandom such as
-# `SecureRandom.hex`.
+# +SecureRandom.hex+.
 #
 # === Examples
 #