diff --git a/apps/files/css/mobile.css b/apps/files/css/mobile.css
index 10a9a57332eb5487a3ba57f775e3864b9f86f390..8e2ef23221d4fda704835aeb7bbc8622bacfd136 100644
--- a/apps/files/css/mobile.css
+++ b/apps/files/css/mobile.css
@@ -61,6 +61,11 @@ table td.filename .nametext .innernametext {
 	max-width: 50%;
 }
 
+/* ellipsis on user names in share sidebar */
+#shareWithList .username {
+    max-width: 80px !important;
+}
+
 /* proper notification area for multi line messages */
 #notification-container {
 	display: -webkit-box;
@@ -82,4 +87,4 @@ table td.filename .nametext .innernametext {
 	display: block !important;
 }
 
-}
\ No newline at end of file
+}