diff --git a/htdocs/accountancy/class/bookkeeping.class.php b/htdocs/accountancy/class/bookkeeping.class.php
index 5f3def1d3ee..000ac06f3c6 100644
--- a/htdocs/accountancy/class/bookkeeping.class.php
+++ b/htdocs/accountancy/class/bookkeeping.class.php
@@ -1722,6 +1722,11 @@ class BookKeeping extends CommonObject
 		dol_syslog(__METHOD__, LOG_DEBUG);
 		$result = $this->db->query($sql);
 		if ($result) {
+			// Add an empty line when transaction is validated to permit to add new line manually
+			if ($mode != "_tmp") {
+				$line = new BookKeepingLine();
+				$this->linesmvt[] = $line;
+			}
 			while ($obj = $this->db->fetch_object($result)) {
 				$line = new BookKeepingLine();