diff --git a/src/theme.scss b/src/theme.scss
index 7510eddf0..16c2c9b3a 100644
--- a/src/theme.scss
+++ b/src/theme.scss
@@ -1978,6 +1978,12 @@ tag-input {
         }
     }
 
+    .input-group-btn {
+        .btn-default {
+            border-color: #ccc;
+        }
+    }
+
     .app-header-container {
         h1 {