diff -u nano/files.c nano-loadhist/files.c
--- nano/files.c	Tue Feb 11 22:02:43 2003
+++ nano-loadhist/files.c	Wed Feb 12 15:08:26 2003
@@ -2891,7 +2891,7 @@
 	    buf = charalloc(1024);
 	    while (fgets(buf, 1023, hist) != 0) {
 		ptr = buf;
-		while (*ptr != '\n')
+		while (*ptr != '\n' && *ptr != '\0' && ptr < buf + 1023)
 		    ptr++;
 		*ptr = '\0';
 		if (strlen(buf))