diff --git a/include/asm-i386/bitops.h b/include/asm-i386/bitops.h
index ddf1739..4807aa1 100644
--- a/include/asm-i386/bitops.h
+++ b/include/asm-i386/bitops.h
@@ -372,6 +372,7 @@
  */
 
 #define fls(x) generic_fls(x)
+#define fls64(x)   generic_fls64(x)
 
 #ifdef __KERNEL__