diff --git a/htdocs/comm/propal/card.php b/htdocs/comm/propal/card.php
index 4c6fbb2045c..3233dff3a4b 100644
--- a/htdocs/comm/propal/card.php
+++ b/htdocs/comm/propal/card.php
@@ -348,13 +348,13 @@ if (empty($reshook))
 			// If we select proposal to clone during creation (when option PROPAL_CLONE_ON_CREATE_PAGE is on)
 			if (GETPOST('createmode') == 'copy' && GETPOST('copie_propal'))
 			{
-				if ($object->fetch(GETPOST('copie_propal')) > 0) {
+				if ($object->fetch(GETPOST('copie_propal','int')) > 0) {
 					$object->ref = GETPOST('ref');
 					$object->datep = $datep;
 					$object->date_livraison = $date_delivery;
 					$object->availability_id = GETPOST('availability_id');
 					$object->demand_reason_id = GETPOST('demand_reason_id');
-					$object->fk_delivery_address = GETPOST('fk_address');
+					$object->fk_delivery_address = GETPOST('fk_address','int');
 					$object->shipping_method_id = GETPOST('shipping_method_id', 'int');
 					$object->duree_validite = $duration;
 					$object->cond_reglement_id = GETPOST('cond_reglement_id');
@@ -362,9 +362,9 @@ if (empty($reshook))
 					$object->fk_account = GETPOST('fk_account', 'int');
 					$object->remise_percent = GETPOST('remise_percent');
 					$object->remise_absolue = GETPOST('remise_absolue');
-					$object->socid = GETPOST('socid');
-					$object->contactid = GETPOST('contactid');
-					$object->fk_project = GETPOST('projectid');
+					$object->socid = GETPOST('socid','int');
+					$object->contactid = GETPOST('contactid','int');
+					$object->fk_project = GETPOST('projectid','int');
 					$object->modelpdf = GETPOST('model');
 					$object->author = $user->id; // deprecated
 					$object->note_private = GETPOST('note_private','none');
@@ -391,8 +391,8 @@ if (empty($reshook))
 				$object->cond_reglement_id = GETPOST('cond_reglement_id');
 				$object->mode_reglement_id = GETPOST('mode_reglement_id');
 				$object->fk_account = GETPOST('fk_account', 'int');
-				$object->contactid = GETPOST('contactid');
-				$object->fk_project = GETPOST('projectid');
+				$object->contactid = GETPOST('contactid','int');
+				$object->fk_project = GETPOST('projectid','int');
 				$object->modelpdf = GETPOST('model');
 				$object->author = $user->id; // deprecated
 				$object->note_private = GETPOST('note_private','none');
@@ -566,6 +566,16 @@ if (empty($reshook))
 						}
 					}
 
+					if (! empty($conf->global->PROPOSAL_AUTO_ADD_AUTHOR_AS_CONTACT))
+					{
+						$result = $object->add_contact($user->id, 'SALESREPFOLL', 'internal');
+						if ($result < 0)
+						{
+							$error++;
+							setEventMessages($langs->trans("ErrorFailedToAddUserAsContact"), null, 'errors');
+						}
+					}
+
 					if (! $error)
 					{
 						$db->commit();