--- libmisc/chkname.c-orig	2002-11-22 17:17:01.000000000 +0100
+++ libmisc/chkname.c	2002-11-22 17:17:24.000000000 +0100
@@ -30,7 +30,7 @@
 	while (*++name) {
 		if (!((*name >= 'a' && *name <= 'z') ||
 		    (*name >= '0' && *name <= '9') ||
-		    *name == '_' || *name == '-' ||
+		    *name == '_' || *name == '-' || *name == '.' ||
 		    (*name == '$' && *(name+1) == NULL)))
 			return 0;
 	}