diff --git a/examples/hello_world.rs b/examples/hello_world.rs
index 3af32d6..831e43f 100644
--- a/examples/hello_world.rs
+++ b/examples/hello_world.rs
@@ -1,12 +1,13 @@
 extern crate cocoa;
 
-use cocoa::base::{selector, nil, YES, NO};
+use cocoa::base::{selector, nil, NO};
 use cocoa::foundation::{NSUInteger, NSRect, NSPoint, NSSize,
 						NSAutoreleasePool, NSProcessInfo, NSString};
 use cocoa::appkit::{NSApp,
 					NSApplication, NSApplicationActivationPolicyRegular,
 					NSWindow, NSTitledWindowMask, NSBackingStoreBuffered,
-					NSMenu, NSMenuItem};
+					NSMenu, NSMenuItem, NSRunningApplication,
+					NSApplicationActivateIgnoringOtherApps};
 
 fn main() {
 	unsafe {
@@ -49,8 +50,8 @@ fn main() {
 		let title = NSString::alloc(nil).init_str("Hello World!");
 		window.setTitle_(title);
 		window.makeKeyAndOrderFront_(nil);
-
-		app.activateIgnoringOtherApps_(YES);
+		let current_app = NSRunningApplication::currentApplication(nil);
+		current_app.activateWithOptions_(NSApplicationActivateIgnoringOtherApps);
 		app.run();
 	}
 }
diff --git a/src/appkit.rs b/src/appkit.rs
index b7afaf6..b4cf9a0 100644
--- a/src/appkit.rs
+++ b/src/appkit.rs
@@ -18,6 +18,7 @@ pub use core_graphics::base::CGFloat;
 pub use core_graphics::geometry::CGPoint;
 
 pub use self::NSApplicationActivationPolicy::*;
+pub use self::NSApplicationActivationOptions::*;
 pub use self::NSWindowMask::*;
 pub use self::NSBackingStoreType::*;
 pub use self::NSOpenGLPixelFormatAttribute::*;
@@ -69,6 +70,12 @@ pub enum NSApplicationActivationPolicy {
     NSApplicationActivationPolicyERROR = -1
 }
 
+#[repr(u64)]
+pub enum NSApplicationActivationOptions {
+    NSApplicationActivateAllWindows = 1 << 0,
+    NSApplicationActivateIgnoringOtherApps = 1 << 1
+}
+
 #[repr(u64)]
 pub enum NSApplicationTerminateReply {
     NSTerminateCancel = 0,
@@ -287,6 +294,19 @@ impl NSApplication for id {
     }
 }
 
+pub trait NSRunningApplication { 
+    unsafe fn currentApplication(_: Self) -> id {
+        msg_send![class("NSRunningApplication"), currentApplication]
+    }
+    unsafe fn activateWithOptions_(self, options: NSApplicationActivationOptions) -> BOOL;
+}
+
+impl NSRunningApplication for id {
+    unsafe fn activateWithOptions_(self, options: NSApplicationActivationOptions) -> BOOL {
+        msg_send![self, activateWithOptions:options as NSUInteger]
+    }
+}
+
 pub trait NSMenu {
     unsafe fn new(_: Self) -> id {
         msg_send![class("NSMenu"), new]