diff --git a/RxCocoa/RxCocoa.h b/RxCocoa/RxCocoa.h
index 45cd4495..730f04ae 100644
--- a/RxCocoa/RxCocoa.h
+++ b/RxCocoa/RxCocoa.h
@@ -9,7 +9,7 @@
 #import <Foundation/Foundation.h>
 #import "_RXDelegateProxy.h"
 #import "_RXKVOObserver.h"
-
+#import "_RX.h"
 #import "_RXSwizzling.h"
 
 //! Project version number for RxCocoa.