diff --git a/include/asm-generic/bits/timeconv.h b/include/asm-generic/bits/timeconv.h
index 7d823f7..79060b3 100644
--- a/include/asm-generic/bits/timeconv.h
+++ b/include/asm-generic/bits/timeconv.h
@@ -93,6 +93,7 @@ static inline void xnarch_init_timeconv(unsigned long long freq)
 #ifdef __KERNEL__
 EXPORT_SYMBOL(xnarch_tsc_to_ns);
 EXPORT_SYMBOL(xnarch_ns_to_tsc);
+EXPORT_SYMBOL(xnarch_divrem_billion);
 #endif /* __KERNEL__ */
 
 #endif /* !_XENO_ASM_GENERIC_BITS_TIMECONV_H */