diff --git a/ChangeLog b/ChangeLog
index cceecd401..42dd98350 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2004-01-10  Paolo Nenzi <p.nenzi@ieee.org>
 
+	*  src/include/cktdefs.h: added prototype for NInzIter().
+
 	*  src/spicelib/devices/cpl/*: Added CPLask and CPLmAsk functions to
 	   access device's internals. Added CPLunsetup function to allow
 	   for multiple simulations.
diff --git a/src/include/cktdefs.h b/src/include/cktdefs.h
index 559fb4ef4..dd72accb9 100644
--- a/src/include/cktdefs.h
+++ b/src/include/cktdefs.h
@@ -383,7 +383,8 @@ extern int NIpzSym(PZtrial **, PZtrial *);
 extern int NIpzSym2(PZtrial **, PZtrial *);
 extern int NIreinit( CKTcircuit *);
 extern int NIsenReinit( CKTcircuit *);
-extern int NIdIter (CKTcircuit *);             
+extern int NIdIter (CKTcircuit *);
+extern void NInzIter(CKTcircuit*, int, int );
 extern IFfrontEnd *SPfrontEnd;
 
 #endif /*CKT*/