diff --git a/C4/Circulation.pm b/C4/Circulation.pm
index 099c92a9e6..cbb2b11e80 100644
--- a/C4/Circulation.pm
+++ b/C4/Circulation.pm
@@ -2397,6 +2397,8 @@ 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(
                     {