diff --git a/include/class/acc_reconciliation.class.php b/include/class/acc_reconciliation.class.php
index 4f3f5a3d1..dc7270d92 100644
--- a/include/class/acc_reconciliation.class.php
+++ b/include/class/acc_reconciliation.class.php
@@ -252,7 +252,7 @@ j1.j_poste as poste
         // If nothing is found return null
         $n=Database::num_row($Res);
 
-        if ($n ==0 ) return null;
+        if ($n ==0 ) return [];
 
         // put everything in an array
         for ($i=0;$i<$n;$i++)