diff --git a/notebook/static/terminal/less/terminal.less b/notebook/static/terminal/less/terminal.less
index b50b75632..fa5117e37 100644
--- a/notebook/static/terminal/less/terminal.less
+++ b/notebook/static/terminal/less/terminal.less
@@ -28,8 +28,12 @@
     background: white;
   }
 
-  #terminado-container {
+  .terminado-container-container {
     padding-top: @page-header-padding;
-    height: ~"calc(100% - @{page-header-padding})";
+    height: 100%;
+  }
+
+  #terminado-container {
+    height: 100%;
   }
 }
diff --git a/notebook/templates/terminal.html b/notebook/templates/terminal.html
index a2da98b69..ecdbbbe3f 100644
--- a/notebook/templates/terminal.html
+++ b/notebook/templates/terminal.html
@@ -23,7 +23,9 @@ data-ws-path="{{ws_path}}"
 {% endblock headercontainer %}
 
 {% block site %}
-<div id="terminado-container" class="container"></div>
+<div class="terminado-container-container">
+  <div id="terminado-container" class="container"></div>
+</div>
 {% endblock %}
 
 {% block script %}