diff --git a/app/darwin_amd64.m b/app/darwin_amd64.m
index c7c5fcd..6869609 100644
--- a/app/darwin_amd64.m
+++ b/app/darwin_amd64.m
@@ -205,7 +205,7 @@ runApp(void) {
 	[menu addItem:quitMenuItem];
 	[menuItem setSubmenu:menu];
 
-	NSRect rect = NSMakeRect(0, 0, 400, 400);
+	NSRect rect = NSMakeRect(0, 0, 600, 800);
 
 	NSWindow* window = [[[NSWindow alloc] initWithContentRect:rect
 			styleMask:NSTitledWindowMask
diff --git a/app/x11.c b/app/x11.c
index eaafa0d..f4a7ef3 100644
--- a/app/x11.c
+++ b/app/x11.c
@@ -110,7 +110,7 @@ createWindow(void) {
 		exit(1);
 	}
 	eglBindAPI(EGL_OPENGL_ES_API);
-	win = new_window(x_dpy, e_dpy, 400, 400, &e_ctx, &e_surf);
+	win = new_window(x_dpy, e_dpy, 600, 800, &e_ctx, &e_surf);
 
 	wm_delete_window = XInternAtom(x_dpy, "WM_DELETE_WINDOW", True);
 	if (wm_delete_window != None) {