@@ -136,10 +136,14 @@
 @end
 
 @interface TestsAppDelegate (OFMethodSignatureTests)
 - (void)methodSignatureTests;
 @end
+
+@interface TestsAppDelegate (OFNotificationCenterTests)
+- (void)notificationCenterTests;
+@end
 
 @interface TestsAppDelegate (OFNumberTests)
 - (void)numberTests;
 @end