diff --git a/fticks.c b/fticks.c
index e2dee19..ed7d0b4 100644
--- a/fticks.c
+++ b/fticks.c
@@ -107,8 +107,13 @@ fticks_log(const struct options *options,
 
     memset(visinst, 0, sizeof(visinst));
     if (options->fticks_reporting == RSP_FTICKS_REPORTING_FULL) {
-	snprintf((char *) visinst, sizeof(visinst), "VISINST=%s#",
+        if (client->conf->fticks_visinst != NULL ) {
+	    snprintf((char *) visinst, sizeof(visinst), "VISINST=%s#",
+		 client->conf->fticks_visinst);
+        } else {
+	    snprintf((char *) visinst, sizeof(visinst), "VISINST=%s#",
 		 client->conf->name);
+        }
     }
 
     memset(macout, 0, sizeof(macout));
diff --git a/radsecproxy.c b/radsecproxy.c
index d08426e..4d6cc1a 100644
--- a/radsecproxy.c
+++ b/radsecproxy.c
@@ -2690,6 +2690,7 @@ int confclient_cb(struct gconffile **cf, void *arg, char *block, char *opt, char
 	    "rewriteattribute", CONF_STR, &conf->confrewriteusername,
 #if defined(WANT_FTICKS)
 	    "fticksVISCOUNTRY", CONF_STR, &conf->fticks_viscountry,
+	    "fticksVISINST", CONF_STR, &conf->fticks_visinst,
 #endif
 	    NULL
 	    ))
diff --git a/radsecproxy.conf.5.xml b/radsecproxy.conf.5.xml
index 4fb9476..3871e06 100644
--- a/radsecproxy.conf.5.xml
+++ b/radsecproxy.conf.5.xml
@@ -480,9 +480,9 @@ blocktype name {
       <literal>certificateNameCheck</literal>,
       <literal>matchCertificateAttribute</literal>,
       <literal>duplicateInterval</literal>, <literal>AddTTL</literal>,
-      <literal>fticksVISCOUNTRY</literal>, <literal>rewrite</literal>,
-      <literal>rewriteIn</literal>, <literal>rewriteOut</literal>, and
-      <literal>rewriteAttribute</literal>.
+      <literal>fticksVISCOUNTRY</literal>, <literal>fticksVISINST</literal>,
+      <literal>rewrite</literal>, <literal>rewriteIn</literal>, 
+      <literal>rewriteOut</literal>, and <literal>rewriteAttribute</literal>.
 
       We already discussed the <literal>host</literal> option. The
       value of <literal>type</literal> must be one of
@@ -543,6 +543,11 @@ blocktype name {
       clients eligible to F-Ticks logging as defined by the
       <literal>FTicksReporting</literal> basic option.
     </para>
+    <para>
+      The <literal>fticksVISINST</literal> option overwrites
+      the default <literal>VISINST</literal> value taken from the client
+      block name.
+    </para>
     <para>
       The <literal>rewrite</literal> option is deprecated. Use
       <literal>rewriteIn</literal> instead.
diff --git a/radsecproxy.h b/radsecproxy.h
index 385f15b..184231b 100644
--- a/radsecproxy.h
+++ b/radsecproxy.h
@@ -131,6 +131,7 @@ struct clsrvconf {
     struct list *clients;
     struct server *servers;
     char *fticks_viscountry;
+    char *fticks_visinst;
 };
 
 #include "tlscommon.h"