diff --git a/htdocs/imports/import.php b/htdocs/imports/import.php
index 15d83cfe8e7..b87b1e18f1a 100644
--- a/htdocs/imports/import.php
+++ b/htdocs/imports/import.php
@@ -352,6 +352,7 @@ if ($step == 1 || !$datatoimport) {
 	$serialized_array_match_file_to_database = '';
 	$array_match_file_to_database = array();
 	$_SESSION["dol_array_match_file_to_database"] = '';
+	$_SESSION["dol_array_match_file_to_database_select"] = '';
 
 	$param = '';
 	if ($excludefirstline) {