diff --git a/WatchfulEye/src/Application.cpp b/WatchfulEye/src/Application.cpp
index b2b7ec8..d4118b9 100644
--- a/WatchfulEye/src/Application.cpp
+++ b/WatchfulEye/src/Application.cpp
@@ -39,6 +39,7 @@ namespace watchfuleye {
         , m_greenBrush(nullptr)
         , m_yellowBrush(nullptr)
         , m_redBrush(nullptr)
+        , m_outlinePen(nullptr)
         , m_offscreenDC(nullptr)
         , m_offscreenBitmap(nullptr)
     {
@@ -116,6 +117,8 @@ namespace watchfuleye {
                 app->m_yellowBrush =    CreateSolidBrush(RGB(255, 255, 150));
                 app->m_redBrush =       CreateSolidBrush(RGB(255, 150, 150));
 
+                app->m_outlinePen = CreatePen(PS_SOLID, 5, RGB(0, 0, 0));
+
                 // App will update (repaint) at 5 FPS
                 SendMessage(hWnd, WM_UPDATE, NULL, NULL);
                 SetTimer(hWnd, IDT_UPDATE, 200, nullptr);
@@ -240,6 +243,12 @@ namespace watchfuleye {
 
                 FillRect(app->m_offscreenDC, &clientRect, backgroundBrush);
 
+                // Draw outline
+                SelectObject(app->m_offscreenDC, GetStockObject(NULL_BRUSH));
+                SelectObject(app->m_offscreenDC, app->m_outlinePen);
+
+                RoundRect(app->m_offscreenDC, 1, 1, WINDOW_WIDTH - 2, WINDOW_HEIGHT - 2, 20, 20);
+
                 // Setup text options
                 SetTextColor(app->m_offscreenDC, RGB(0, 0, 0));
                 SetBkMode(app->m_offscreenDC, TRANSPARENT);
diff --git a/WatchfulEye/src/Application.h b/WatchfulEye/src/Application.h
index bd34c63..1d5750e 100644
--- a/WatchfulEye/src/Application.h
+++ b/WatchfulEye/src/Application.h
@@ -38,6 +38,7 @@ namespace watchfuleye {
         HRGN m_region;
         HFONT m_timeFont, m_lowerFont;
         HBRUSH m_greenBrush, m_yellowBrush, m_redBrush;
+        HPEN m_outlinePen;
         HDC m_offscreenDC;
         HBITMAP m_offscreenBitmap;
     };