diff --git a/js/chromium.js b/js/chromium.js
index ffa390f7..42384e40 100644
--- a/js/chromium.js
+++ b/js/chromium.js
@@ -137,6 +137,13 @@
                 w.clearAttention();
                 w.drawAttention();
             }
+        },
+
+        clearAttention: function(window_id) {
+            if (chrome.app.window) {
+                var w = chrome.app.window.get(window_id);
+                w.clearAttention();
+            }
         }
 
     };
diff --git a/js/panel_controller.js b/js/panel_controller.js
index 53d9a3db..db014378 100644
--- a/js/panel_controller.js
+++ b/js/panel_controller.js
@@ -57,6 +57,7 @@
                 });
                 appWindow.contentWindow.addEventListener('focus', function() {
                     inboxFocused = true;
+                    extension.windows.clearAttention(inboxWindowId);
                 });
 
                 // close the inbox if background.html is refreshed