diff --git a/reports/borrowers_stats.pl b/reports/borrowers_stats.pl
index 979c7d3996..622a6f93f7 100755
--- a/reports/borrowers_stats.pl
+++ b/reports/borrowers_stats.pl
@@ -406,8 +406,8 @@ sub calculate {
             $strcalc .= " AND attribute_$type.attribute LIKE '" . $filter . "' ";
         }
     }
-	$strcalc .= " AND borrowernumber in (select distinct(borrowernumber) from old_issues where issuedate > '" . $newperioddate . "')" if ($activity eq 'active');
-	$strcalc .= " AND borrowernumber not in (select distinct(borrowernumber) from old_issues where issuedate > '" . $newperioddate . "' AND borrowernumber IS NOT NULL)" if ($activity eq 'nonactive');
+    $strcalc .= " AND borrowers.borrowernumber in (select distinct(borrowernumber) from old_issues where issuedate > '" . $newperioddate . "')" if ($activity eq 'active');
+    $strcalc .= " AND borrowers.borrowernumber not in (select distinct(borrowernumber) from old_issues where issuedate > '" . $newperioddate . "' AND borrowernumber IS NOT NULL)" if ($activity eq 'nonactive');
 	$strcalc .= " AND $status='1' " if ($status);
 
     $strcalc .= " GROUP BY ";