--- a/src/pyams_skin/resources/less/forms.less	Tue Aug 28 09:43:00 2018 +0200
+++ b/src/pyams_skin/resources/less/forms.less	Tue Aug 28 09:44:16 2018 +0200
@@ -1409,6 +1409,7 @@
 	}
 	.input-file {
 		position: relative;
+		width: 100%;
 
 		.current-value {
 			font-size: 13px;