diff --git a/NEWS b/NEWS
index 4c697aac1..eda213135 100644
--- a/NEWS
+++ b/NEWS
@@ -485,9 +485,12 @@ When you want the old behavior, use 'round' explicitely:
 This function finds a simple fraction that is close to a given real
 number.  For example (and compare with inexact->exact above):
 
-    (rationalize 1.234 0.0005)
+    (rationalize (inexact->exact 1.234) 1/2000)
     => 58/47
 
+Note that, as required by R5RS, rationalize returns only then an exact
+result when both its arguments are exact.
+
 ** 'odd?' and 'even?' work also for inexact integers.
 
 Previously, (odd? 1.0) would signal an error since only exact integers
diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index 27f23965e..7c73c47e1 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,5 +1,9 @@
 2003-11-19  Marius Vollmer  <mvo@zagadka.de>
 
+	* numbers.c (scm_make_ratio): Rewritten to have a simpler
+	structure.  Previously, not all cases with a negative denominator
+	were covered.
+
 	* numbers.c (mem2decimal_from_point): use scm_divide instead of
 	scm_divide2real when forming the fractional part.  This allows
 	"#e1.2" to yield 6/5.