@@ -21,11 +21,11 @@
 #import "OFInvalidArgumentException.h"
 
 int _NSNumber_OFObject_reference;
 
 @implementation NSNumber (OFObject)
-- (id)OFObject
+- (OFNumber *)OFObject
 {
 	const char *type = self.objCType;
 
 	if (strcmp(type, "c") == 0)
 		return [OFNumber numberWithChar: self.charValue];