diff --git a/app/assets/stylesheets/protocol_management.scss b/app/assets/stylesheets/protocol_management.scss
index fbe09bd44..df819ee46 100644
--- a/app/assets/stylesheets/protocol_management.scss
+++ b/app/assets/stylesheets/protocol_management.scss
@@ -94,6 +94,7 @@
 
     .input-group {
       margin-bottom: 0;
+      max-width: 50%;
 
       .form-control {
         border-right: 0;