diff --git a/htdocs/product/stock/stocktransfer/class/stocktransfer.class.php b/htdocs/product/stock/stocktransfer/class/stocktransfer.class.php
index 3cff895c215..acd60346fe1 100644
--- a/htdocs/product/stock/stocktransfer/class/stocktransfer.class.php
+++ b/htdocs/product/stock/stocktransfer/class/stocktransfer.class.php
@@ -427,7 +427,7 @@ class StockTransfer extends CommonObject
 			}
 		}
 		if (count($sqlwhere) > 0) {
-			$sql .= ' AND ('.implode(' '.$filtermode.' ', $sqlwhere).')';
+			$sql .= " AND (".implode(" ".$filtermode." ", $sqlwhere).")";
 		}
 
 		if (!empty($sortfield)) {
diff --git a/htdocs/product/stock/stocktransfer/class/stocktransferline.class.php b/htdocs/product/stock/stocktransfer/class/stocktransferline.class.php
index f2378469e29..3a362395dd8 100644
--- a/htdocs/product/stock/stocktransfer/class/stocktransferline.class.php
+++ b/htdocs/product/stock/stocktransfer/class/stocktransferline.class.php
@@ -357,7 +357,7 @@ class StockTransferLine extends CommonObjectLine
 			}
 		}
 		if (count($sqlwhere) > 0) {
-			$sql .= ' AND ('.implode(' '.$filtermode.' ', $sqlwhere).')';
+			$sql .= " AND (".implode(" ".$filtermode." ", $sqlwhere).")";
 		}
 
 		if (!empty($sortfield)) {