diff --git a/ChangeLog b/ChangeLog
index fc2ab551bc..ced513d4fb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Fri Feb  8 07:33:00 2013  Zachary Scott  <zachary@zacharyscott.net>
+
+	* compar.c (cmp_equal): Document ignored exception and return false
+	  By Makoto Kishimoto [Bug #7790] [ruby-dev:46925] [ruby-dev:46910]
+
 Fri Feb  8 07:17:00 2013  Eric Hodel  <drbrain@segment7.net>
 
 	* lib/rubygems/dependency_installer.rb:  Only install local gems if
diff --git a/compar.c b/compar.c
index 65def78484..6762786276 100644
--- a/compar.c
+++ b/compar.c
@@ -54,6 +54,9 @@ cmp_failed(void)
  *  Compares two objects based on the receiver's <code><=></code>
  *  method, returning true if it returns 0. Also returns true if
  *  _obj_ and _other_ are the same object.
+ *
+ *  Even if _obj_ <=> _other_ raised an exception, the exception
+ *  is ignoread and returns false.
  */
 
 static VALUE