diff --git a/htdocs/comm/propal/class/propalestats.class.php b/htdocs/comm/propal/class/propalestats.class.php
index 834ecd2bacb..eb699e01c86 100644
--- a/htdocs/comm/propal/class/propalestats.class.php
+++ b/htdocs/comm/propal/class/propalestats.class.php
@@ -247,17 +247,19 @@ class PropaleStats extends Stats
 	{
 		global $user;
 
-		$sql = "SELECT product.ref, COUNT(product.ref) as nb, SUM(tl.".$this->field_line.") as total, AVG(tl.".$this->field_line.") as avg";
-		$sql .= " FROM (".$this->from.", ".$this->from_line.", ".MAIN_DB_PREFIX."product as product)";
-		if (empty($user->rights->societe->client->voir) && !$user->socid) {
-			$sql .= "  INNER JOIN ".MAIN_DB_PREFIX."societe_commerciaux as sc ON p.fk_soc = sc.fk_soc AND sc.fk_user = ".((int) $user->id);
+		$sql = 'SELECT product.ref, COUNT(product.ref) as nb, SUM(tl.' . $this->field_line . ') as total, AVG(tl.' . $this->field_line . ') as avg';
+		$sql .= ' FROM ' . $this->from;
+		$sql .= ' INNER JOIN ' . $this->from_line . ' ON p.rowid = tl.fk_propal';
+		$sql .= ' INNER JOIN ' . MAIN_DB_PREFIX . 'product as product ON tl.fk_product = product.rowid';
+		if (empty($user->rights->societe->client->voir) && ! $user->socid) {
+			$sql .= '  INNER JOIN ' . MAIN_DB_PREFIX . 'societe_commerciaux as sc ON p.fk_soc = sc.fk_soc AND sc.fk_user = ' . ((int) $user->id);
 		}
 		$sql .= $this->join;
-		$sql .= " WHERE ".$this->where;
-		$sql .= " AND p.rowid = tl.fk_propal AND tl.fk_product = product.rowid";
-		$sql .= " AND ".$this->field_date." BETWEEN '".$this->db->idate(dol_get_first_day($year, 1, false))."' AND '".$this->db->idate(dol_get_last_day($year, 12, false))."'";
-		$sql .= " GROUP BY product.ref";
+		$sql .= ' WHERE ' . $this->where;
+		$sql .= ' AND ' . $this->field_date . " BETWEEN '" . $this->db->idate(dol_get_first_day($year, 1, false)) . "' AND '" . $this->db->idate(dol_get_last_day($year, 12, false)) . "'";
+		$sql .= ' GROUP BY product.ref';
 		$sql .= $this->db->order('nb', 'DESC');
+
 		//$sql.= $this->db->plimit(20);
 
 		return $this->_getAllByProduct($sql, $limit);