diff --git a/plugins/other/raid b/plugins/other/raid
index ab5522e7..90ccd56f 100755
--- a/plugins/other/raid
+++ b/plugins/other/raid
@@ -55,8 +55,8 @@ if ( $ARGV[0] and $ARGV[0] eq "config" ) {
 	    my $pct = 100 * $nact / $nmem;
 	    my $rpct = 100;
 	    if ( $pct < 100 ) {
-		my $output = `/sbin/mdadm -D /dev/$dev | grep Rebuild`;
-		if( $output =~ /([0-9]+)% complete/ ) {
+		my @output = `/sbin/mdadm -D /dev/$dev | grep Rebuild`;
+		if( $output[0] =~ /([0-9]+)% complete/ ) {
 			$rpct = $1;
 		} else {
 			$rpct = 0;