diff --git a/static/panes.less b/static/panes.less
index 00ee97c7f..418027772 100644
--- a/static/panes.less
+++ b/static/panes.less
@@ -7,10 +7,12 @@ atom-pane-container {
   position: relative;
   display: -webkit-flex;
   -webkit-flex: 1;
+  min-width: 0;
 
   atom-pane-axis {
     display: -webkit-flex;
     -webkit-flex: 1;
+    min-width: 0;
 
     & > atom-pane-resize-handle {
       position: absolute;