--- cvs-1.11.19/src/rcs.c.old	2005-03-14 13:09:39.000000000 +0100
+++ cvs-1.11.19/src/rcs.c	2005-03-14 13:08:24.000000000 +0100
@@ -3382,7 +3382,7 @@
 RCS_check_tag (tag)
     const char *tag;
 {
-    char *invalid = "$,.:;@";		/* invalid RCS tag characters */
+    char *invalid = "$,.:;@/";		/* invalid RCS tag characters */
     const char *cp;
 
     /*