diff --git a/ice-9/ChangeLog b/ice-9/ChangeLog
index 2e53eff19..43a717e0a 100644
--- a/ice-9/ChangeLog
+++ b/ice-9/ChangeLog
@@ -1,3 +1,9 @@
+2003-03-19  Marius Vollmer  <mvo@zagadka.de>
+
+	* format.scm (format:out-substr): Update the column counter
+	correctly. This fixes the behavior of ~T (tabbing) after ~F, for
+	instance.  Thanks to Matthias Koeppe!
+
 2003-03-13  Mikael Djurfeldt  <djurfeldt@nada.kth.se>
 
 	* session.scm (apropos): Don't look in duplicates interface.
diff --git a/test-suite/ChangeLog b/test-suite/ChangeLog
index 689040a92..e6e444926 100644
--- a/test-suite/ChangeLog
+++ b/test-suite/ChangeLog
@@ -1,3 +1,8 @@
+2003-03-19  Marius Vollmer  <mvo@zagadka.de>
+
+	* tests/format.test ("format basic output"): Added test for "~F"
+	from Matthias Koeppe.
+
 2003-02-19  Mikael Djurfeldt  <djurfeldt@nada.kth.se>
 
 	* tests/elisp.test: Use module (ice-9 weak-vector).