diff --git a/src/frontend/ChangeLog b/src/frontend/ChangeLog
index a59b5e15f..180ac51b8 100644
--- a/src/frontend/ChangeLog
+++ b/src/frontend/ChangeLog
@@ -1,3 +1,9 @@
+2001-12-14  Paolo Nenzi <p.nenzi@iee.org>
+
+	* control.c, control.h, com_cdump.c, com_cdump.h, variable.c, variable.h:
+	  Patched the code with the one contributed by Charles Williams. The patches
+	  addresses some memory leaks.
+	
 2001-11-25  Emmanuel Rouat  <emmanuel.rouat@wanadoo.fr>
 
 	* circuits.h: transfered definition of sstructire 'circ' to ftedefs.h
diff --git a/src/frontend/parser/ChangeLog b/src/frontend/parser/ChangeLog
index 54f144fd9..cab45c791 100644
--- a/src/frontend/parser/ChangeLog
+++ b/src/frontend/parser/ChangeLog
@@ -1,3 +1,9 @@
+2001-12-14  Paolo Nenzi <p.nenzi@ieee.org>
+
+	* lexical.c, complete.c, complete.h:
+	  Patched the code with the one contributed by Charles Williams. The patches
+	  addresses some memory leaks.
+
 2000-07-18  Arno W. Peters  <A.W.Peters@ieee.org>
 
 	* numparse.c: Updates of header file includes.  Some formatting
diff --git a/src/include/ChangeLog b/src/include/ChangeLog
index 7d908a57d..a23b3743a 100644
--- a/src/include/ChangeLog
+++ b/src/include/ChangeLog
@@ -1,3 +1,8 @@
+2001-12-14  Paolo Nenzi <p.nenzi@ieee.org>
+
+	* cpextern.h: Modification needed for patches sent by 
+	  Charles Williams.
+
 2001-11-25  Emmanuel Rouat  <emmanuel.rouat@wanadoo.fr>
 
 	* ftedefs.h: added definition of structure circ (taken from circuits.h)