--- libaitcfg/src/parse.c	2026/08/04 18:51:43	1.22.4.1
+++ libaitcfg/src/parse.c	2026/08/04 18:57:55	1.22.4.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: parse.c,v 1.22.4.1 2026/08/04 18:51:43 misho Exp $
+* $Id: parse.c,v 1.22.4.2 2026/08/04 18:57:55 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -609,7 +609,7 @@ cfgWriteLines(FILE *f, const char *delim, const char *
 		AIT_SET_STRCAT(v, eol);
 	}
 
-	if (f)
+	if (f && AIT_GET_STR(v))
 		fputs(AIT_GET_STR(v), f);
 	return v;
 }