diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index 622d70b25..84a26c16f 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -691,6 +691,10 @@ div#activity dl dt:first-child {
   border: 0px;
 }
 
+#activity_scope_form select#user_id {
+  max-width: 100%;
+}
+
 #search-results dd { margin-bottom: 1em; padding-left: 20px; margin-left:0px; }
 
 div#search-results-counts {float:right;}