diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index 1d24a8b55c1..177bd82c1af 100755
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -677,28 +677,28 @@ class ExtraFields
 		}
 		elseif ($type == 'sellist')
 		{
-			
+
 			$out='<select class="flat" name="options_'.$key.'">';
 			if (is_array($param['options'])) {
 				$param_list=array_keys($param['options']);
 				$InfoFieldList = explode(":", $param_list[0]);
-	
+
 				// 0 1 : tableName
 				// 1 2 : label field name Nom du champ contenant le libelle
 				// 2 3 : key fields name (if differ of rowid)
-	
+
 				$keyList='rowid';
-	
+
 				if (count($InfoFieldList)==3)
 					$keyList=$InfoFieldList[2].' as rowid';
-	
+
 				$sql = 'SELECT '.$keyList.', '.$InfoFieldList[1];
 				$sql.= ' FROM '.MAIN_DB_PREFIX .$InfoFieldList[0];
 				//$sql.= ' WHERE entity = '.$conf->entity;
-	
+
 				dol_syslog(get_class($this).'::showInputField type=sellist sql='.$sql);
 				$resql = $this->db->query($sql);
-	
+
 				if ($resql)
 				{
 					$out.='<option value="0">&nbsp;</option>';
@@ -833,8 +833,8 @@ class ExtraFields
 				$keyList='rowid';
 				if (count($InfoFieldList)==3)
 					$keyList=$InfoFieldList[2];
-	
-	
+
+
 				$sql = 'SELECT '.$InfoFieldList[1];
 				$sql.= ' FROM '.MAIN_DB_PREFIX .$InfoFieldList[0];
 				$sql.= ' WHERE '.$keyList.'=\''.$this->db->escape($value).'\'';
@@ -894,7 +894,9 @@ class ExtraFields
 	 */
 	function setOptionalsFromPost($extralabels,&$object)
 	{
-		global $_POST;
+		global $_POST, $langs;
+		$nofillrequired='';// For error when required field left blank
+		$error_field_required = array();
 
 		if (is_array($extralabels))
 		{
@@ -903,6 +905,12 @@ class ExtraFields
 			{
 				$key_type = $this->attribute_type[$key];
 
+				if($this->attribute_required[$key] && !GETPOST($value))
+				{
+					$nofillrequired++;
+					$error_field_required[] = $value;
+				}
+
 				if (in_array($key_type,array('date','datetime')))
 				{
 					// Clean parameters
@@ -929,7 +937,14 @@ class ExtraFields
 				$object->array_options["options_".$key]=$value_key;
 			}
 
-			return 1;
+			if($nofillrequired) {
+				$langs->load('errors');
+				setEventMessage($langs->trans('ErrorFieldsRequired').' : '.implode(', ',$error_field_required),'errors');
+				return -1;
+			}
+			else {
+				return 1;
+			}
 		}
 		else {
 			return 0;