diff --git a/bin/pt-upgrade b/bin/pt-upgrade
index daa72ddc..8ac04cee 100755
--- a/bin/pt-upgrade
+++ b/bin/pt-upgrade
@@ -8942,6 +8942,16 @@ sub _compare_rows {
 
       $event->{row_count} = 0;
 
+      if ( !$right ) {
+         PTDEBUG && _d('No results sth on host', $i);
+         $different_row_counts++;
+         $different_column_counts++;
+         $different_column_types++;
+         $different_column_values++;
+         delete $event->{results_sth};
+         next EVENT;
+      }
+
       my $no_diff      = 1;  # results are identical; this catches 0 row results
       my $outfile      = new Outfile();
       my ($left_outfile, $right_outfile, $n_rows);