diff --git a/src/include/cktdefs.h b/src/include/cktdefs.h
index e6f7963d7..211cbcb84 100644
--- a/src/include/cktdefs.h
+++ b/src/include/cktdefs.h
@@ -2,6 +2,7 @@
  * Copyright (c) 1985 Thomas L. Quarles
  * Modified 1999 Paolo Nenzi - Removed non STDC definitions
  * Modified 2000 AlansFixes
+ * $Id$
  */
 #ifndef CKT
 #define CKT "CKTdefs.h $Revision$  on $Date$ "
@@ -288,6 +289,9 @@ extern int CKTdltNNum(void *, int );
 extern int CKTdltNod( void *, void *);
 extern int CKTdoJob( void *, int , void *);
 extern void CKTdump( CKTcircuit *, double, void *);
+#ifdef CIDER
+extern void NDEVacct(CKTcircuit *ckt, FILE *file);
+#endif /* CIDER */
 extern void CKTncDump(CKTcircuit *);
 extern int CKTfndAnal( void *, int *, void **, IFuid , void *, IFuid );
 extern int CKTfndBranch( CKTcircuit *, IFuid);