diff --git a/Frameworks/OakAppKit/src/OakRolloverButton.h b/Frameworks/OakAppKit/src/OakRolloverButton.h
index f3d2618d..95555ac4 100644
--- a/Frameworks/OakAppKit/src/OakRolloverButton.h
+++ b/Frameworks/OakAppKit/src/OakRolloverButton.h
@@ -1,5 +1,8 @@
 #include <oak/misc.h>
 
+extern NSString* const OakRolloverButtonMouseDidEnterNotification;
+extern NSString* const OakRolloverButtonMouseDidLeaveNotification;
+
 PUBLIC @interface OakRolloverButton : NSButton
 @property (nonatomic) NSImage* regularImage;
 @property (nonatomic) NSImage* pressedImage;
diff --git a/Frameworks/OakAppKit/src/OakRolloverButton.mm b/Frameworks/OakAppKit/src/OakRolloverButton.mm
index 36f669a0..343ee594 100644
--- a/Frameworks/OakAppKit/src/OakRolloverButton.mm
+++ b/Frameworks/OakAppKit/src/OakRolloverButton.mm
@@ -1,5 +1,8 @@
 #import "OakRolloverButton.h"
 
+NSString* const OakRolloverButtonMouseDidEnterNotification = @"OakRolloverButtonMouseDidEnterNotification";
+NSString* const OakRolloverButtonMouseDidLeaveNotification = @"OakRolloverButtonMouseDidLeaveNotification";
+
 typedef NS_ENUM(NSUInteger, OakImageState) {
 	OakImageStateRegular = 0,
 	OakImageStatePressed,
@@ -163,7 +166,11 @@ typedef NS_ENUM(NSUInteger, OakImageState) {
 {
 	if(_mouseInside == flag)
 		return;
+
 	_mouseInside = flag;
 	[self updateImage];
+
+	NSString* notification = _mouseInside ? OakRolloverButtonMouseDidEnterNotification : OakRolloverButtonMouseDidLeaveNotification;
+	[NSNotificationCenter.defaultCenter postNotificationName:notification object:self];
 }
 @end