diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 1d04922ea16c..d02742a95294 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -76,14 +76,6 @@
 #define FALSE   (0)
 #endif
 
-#if !defined(EXTERN)
-#if defined(__cplusplus)
-#define EXTERN extern "C"
-#else
-#define EXTERN extern
-#endif
-#endif
-
 #if !defined(INLINE)
 #define INLINE static __inline
 #endif