diff --git a/packages/web/src/Screen.js b/packages/web/src/Screen.js
index 22894e366..8dbf1ed85 100644
--- a/packages/web/src/Screen.js
+++ b/packages/web/src/Screen.js
@@ -56,6 +56,7 @@ const TabsPanelContainer = styled.div`
   height: ${theme.tabsPanel.height}px;
   right: 0;
   background-color: ${theme.tabsPanel.background};
+  border-top: 1px solid #CCC;
 `;
 
 const StausBarContainer = styled.div`
diff --git a/packages/web/src/theme.js b/packages/web/src/theme.js
index 7054e5d78..cab10aa5d 100644
--- a/packages/web/src/theme.js
+++ b/packages/web/src/theme.js
@@ -12,7 +12,7 @@ export default {
     background: "#ccc"
   },
   tabsPanel: {
-    height: 30,
+    height: 31,
     background: "#ddd",
     hoverFont: "#338"
   },