diff --git a/conf/confbase.Y b/conf/confbase.Y
index 9a83083c..58890cd6 100644
--- a/conf/confbase.Y
+++ b/conf/confbase.Y
@@ -173,7 +173,7 @@ expr_us:
  | expr US { $$ = $1 US_; }
  ;
 
-toksym: FROM ;
+toksym: FROM | PREFERENCE ;
 symbol: CF_SYM_UNDEFINED | CF_SYM_KNOWN | toksym ;
 symbol_known: CF_SYM_KNOWN | toksym ;
 
diff --git a/filter/test.conf b/filter/test.conf
index 21e7330f..eb9cc30c 100644
--- a/filter/test.conf
+++ b/filter/test.conf
@@ -1445,6 +1445,8 @@ bool t;
 	rip_metric = 14;
 	unset(rip_metric);
 
+	preference = 1234;
+
 	test_ca_int1 = 42;
 	test_ca_ip2 = 1.3.5.7;
 	test_ca_quad3 = 2.4.6.8;