diff --git a/util/mkerr.pl b/util/mkerr.pl
index 49a52a7f33082298fac87935fa72639eb795fdf7..9a3b634d57395279f53855bebb5341d1d7cdf2f3 100644
--- a/util/mkerr.pl
+++ b/util/mkerr.pl
@@ -789,7 +789,7 @@ foreach (keys %rcodes) {
 	push (@runref, $_) unless exists $urcodes{$_};
 }
 
-if($debug && defined(@funref) ) {
+if($debug && @funref) {
 	print STDERR "The following function codes were not referenced:\n";
 	foreach(sort @funref)
 	{
@@ -797,7 +797,7 @@ if($debug && defined(@funref) ) {
 	}
 }
 
-if($debug && defined(@runref) ) {
+if($debug && @runref) {
 	print STDERR "The following reason codes were not referenced:\n";
 	foreach(sort @runref)
 	{