diff --git a/ChangeLog b/ChangeLog
index 14d1f608a9..a72f2d0290 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Mar 15 04:08:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* proc.c: Typo in Proc.arity found by Jack Nagel [Bug #8094]
+
 Thu Mar 14 16:59:09 2013  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in (rb_cv_function_name_string): macro for function name
diff --git a/proc.c b/proc.c
index c86cb1c3ac..fe2280f84d 100644
--- a/proc.c
+++ b/proc.c
@@ -649,7 +649,7 @@ rb_proc_call_with_block(VALUE self, int argc, VALUE *argv, VALUE pass_procval)
  *
  *     proc   { |x = 0| }.arity       #=> 0
  *     lambda { |a = 0| }.arity       #=> -1
- *     proc   { |x=0, y| }.arity      #=> 0
+ *     proc   { |x=0, y| }.arity      #=> 1
  *     lambda { |x=0, y| }.arity      #=> -2
  *     proc   { |x=0, y=0| }.arity    #=> 0
  *     lambda { |x=0, y=0| }.arity    #=> -1