diff --git a/htdocs/supplier_proposal/class/supplier_proposal.class.php b/htdocs/supplier_proposal/class/supplier_proposal.class.php
index 7fdd5466cd5..d292ebe13bf 100644
--- a/htdocs/supplier_proposal/class/supplier_proposal.class.php
+++ b/htdocs/supplier_proposal/class/supplier_proposal.class.php
@@ -2061,11 +2061,14 @@ class SupplierProposal extends CommonObject
 
         if (! $error)
         {
+            $main = MAIN_DB_PREFIX . 'supplier_proposaldet';
+            $ef = $main . "_extrafields";
+            $sqlef = "DELETE FROM $ef WHERE fk_object IN (SELECT rowid FROM $main WHERE fk_supplier_proposal = " . $this->id . ")";
             $sql = "DELETE FROM ".MAIN_DB_PREFIX."supplier_proposaldet WHERE fk_supplier_proposal = ".$this->id;
             if ($this->db->query($sql))
             {
                 $sql = "DELETE FROM ".MAIN_DB_PREFIX."supplier_proposal WHERE rowid = ".$this->id;
-                if ($this->db->query($sql))
+                if ($this->db->query($sqlef) && $this->db->query($sql))
                 {
                     // Delete linked object
                     $res = $this->deleteObjectLinked();