diff --git a/C4/Circulation.pm b/C4/Circulation.pm
index 8db887db2e..99e1423e51 100644
--- a/C4/Circulation.pm
+++ b/C4/Circulation.pm
@@ -2433,6 +2433,8 @@ sub _FixOverduesOnReturn {
             if ($exemptfine) {
                 my $amountoutstanding = $accountline->amountoutstanding;
 
+                return if $amountoutstanding <= 0;
+
                 my $account = Koha::Account->new({patron_id => $borrowernumber});
                 my $credit = $account->add_credit(
                     {