diff --git a/lib/nfss.pm b/lib/nfss.pm
index 0f6dd37..ab54272 100644
--- a/lib/nfss.pm
+++ b/lib/nfss.pm
@@ -444,8 +444,8 @@ sub nfss_cgi {
 	}
 	for($n = 0; $n < 10; $n++) {
 		my $str = trim((split(',', $nfss->{graph_0}))[$n]) || "";
-		if(grep { $_ eq $str } @nfsv) {
-			my ($i) = grep { $nfsv[$_] eq $str } 0..$#nfsv;
+		if(grep {$_ eq $str} @nfsv) {
+			my ($i) = grep {$nfsv[$_] eq $str} 0..$#nfsv;
 			push(@DEF, "DEF:nfs_$i=$rrd:nfss_$i:AVERAGE");
 			push(@tmp, "LINE1:nfs_$i$AC[$n]:" . sprintf("%-12s", $str));
 			push(@tmp, "GPRINT:nfs_$i:LAST:    Cur\\: %6.1lf");
@@ -526,8 +526,8 @@ sub nfss_cgi {
 	undef(@DEF);
 	for($n = 0; $n < 10; $n++) {
 		my $str = trim((split(',', $nfss->{graph_1}))[$n]) || "";
-		if(grep { $_ eq $str } @nfsv) {
-			my ($i) = grep { $nfsv[$_] eq $str } 0..$#nfsv;
+		if(grep {$_ eq $str} @nfsv) {
+			my ($i) = grep {$nfsv[$_] eq $str} 0..$#nfsv;
 			push(@DEF, "DEF:nfs_$i=$rrd:nfss_$i:AVERAGE");
 			push(@tmp, "LINE1:nfs_$i$AC[$n]:" . sprintf("%-12s", $str));
 			push(@tmp, "GPRINT:nfs_$i:LAST:    Cur\\: %6.1lf");
@@ -607,8 +607,8 @@ sub nfss_cgi {
 	undef(@DEF);
 	for($n = 0; $n < 10; $n++) {
 		my $str = trim((split(',', $nfss->{graph_2}))[$n]) || "";
-		if(grep { $_ eq $str } @nfsv) {
-			my ($i) = grep { $nfsv[$_] eq $str } 0..$#nfsv;
+		if(grep {$_ eq $str} @nfsv) {
+			my ($i) = grep {$nfsv[$_] eq $str} 0..$#nfsv;
 			push(@DEF, "DEF:nfs_$i=$rrd:nfss_$i:AVERAGE");
 			push(@tmp, "LINE1:nfs_$i$AC[$n]:" . sprintf("%-12s", $str));
 			push(@tmp, "GPRINT:nfs_$i:LAST:    Cur\\: %6.1lf");