diff --git a/kernel/compat.h b/kernel/compat.h
index 78c519bd..d3e2aedb 100644
--- a/kernel/compat.h
+++ b/kernel/compat.h
@@ -84,4 +84,8 @@ extern int _compat_unlink(
 #define HAS_VOID_RELEASE
 #endif
 
+#ifdef __bvec_iter_bvec
+#define HAS_BVEC_ITER
+#endif
+
 #endif /* _MARS_COMPAT */
diff --git a/kernel/mars_if.c b/kernel/mars_if.c
index f45cf16d..36d13ffa 100644
--- a/kernel/mars_if.c
+++ b/kernel/mars_if.c
@@ -62,9 +62,6 @@
 #include "lib_limiter.h"
 
 //      remove_this
-#ifdef __bvec_iter_bvec
-#define HAS_BVEC_ITER
-#endif
 /* adaptation to 4246a0b63bd8f56a1469b12eafeb875b1041a451 and 8ae126660fddbeebb9251a174e6fa45b6ad8f932 */
 #ifndef bio_io_error
 #define HAS_BI_ERROR