diff -r e1988a5f8e5f -r b651702212f8 src/pyams_skin/resources/less/widgets.less
--- a/src/pyams_skin/resources/less/widgets.less	Thu Sep 06 16:32:38 2018 +0200
+++ b/src/pyams_skin/resources/less/widgets.less	Thu Sep 06 17:35:14 2018 +0200
@@ -1305,6 +1305,9 @@
 					user-select: none;
 					background-color: #3276b1;
 
+					& +.select2-search-field {
+						width: auto;
+					}
 					.select2-chosen {
 						cursor: default;
 					}