--- check.c.old	Thu Apr 18 16:57:19 2002
+++ check.c	Thu Apr 18 16:56:34 2002
@@ -196,7 +196,7 @@
 
     if (subst) {
 	new_prompt = (char *) emalloc(len + 1);
-	for (p = old_prompt, np = new_prompt; *p; p++) {
+	for (p = old_prompt, np = new_prompt, lastchar = '\0'; *p; p++) {
 	    if (lastchar == '%' && (*p == 'h' || *p == 'u' || *p == '%')) {
 		/* substiture user/host name */
 		if (*p == 'h') {