diff --git a/bird.conf b/bird.conf
index 75a2408c..476ccf30 100644
--- a/bird.conf
+++ b/bird.conf
@@ -20,7 +20,9 @@ function callme (int arg1; int arg2;)
 }
 
 function startup () 
-int i; 
+int i;
+prefix px;
+
 { 
 	print "Bird filter language: selftesting...";
 	i = 4; 
@@ -42,6 +44,10 @@ int i;
 	print "IPsets: true = " 1.2.3.4 ~ [ 1.2.3.3..1.2.3.5 ];
 	print "        false = " 1.2.3.4 ~ [ 1.2.3.3, 1.2.3.5 ];
 
+	print "Testing prefixes: 1.2.3.4/18 = " 1.2.3.4/18;
+	print "Testing pairs: (1,2) = " (1,2);
+
+	print "Testing functions...";
 	callme ( 1, 2, );
 	callme ( 2, 2, );
 	callme ( 3, 2, );
@@ -49,7 +55,7 @@ int i;
 	callme ( 7, 2, );
 
 	print "done";
-#	quitbird;
+	quitbird;
 #	print "*** FAIL: this is unreachable"; 
 }