diff --git a/scripts/multilib_header_wrapper.h b/scripts/multilib_header_wrapper.h
index f516673b63..9660225fdd 100644
--- a/scripts/multilib_header_wrapper.h
+++ b/scripts/multilib_header_wrapper.h
@@ -22,7 +22,9 @@
  */
 
 
-#if defined (__arm__)
+#if defined (__bpf__)
+#define __MHWORDSIZE			64
+#elif defined (__arm__)
 #define __MHWORDSIZE			32
 #elif defined (__aarch64__) && defined ( __LP64__)
 #define __MHWORDSIZE			64