diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index cf70b5c354..231d5283be 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -4988,6 +4988,10 @@ input[type="submit"].btn.btn-mini {
   margin-left: -1px;
 }
 
+.modal-footer .btn-block + .btn-block {
+  margin-left: 0;
+}
+
 .tooltip {
   position: absolute;
   z-index: 1030;
diff --git a/less/modals.less b/less/modals.less
index 81cacb7ab1..a0401c4d11 100644
--- a/less/modals.less
+++ b/less/modals.less
@@ -95,4 +95,8 @@
   .btn-group .btn + .btn {
     margin-left: -1px;
   }
+  // and override it for block buttons as well
+  .btn-block + .btn-block {
+    margin-left: 0;
+  }
 }