diff --git a/src/atomic.h b/src/atomic.h
index db68ca7e..e9ef2648 100644
--- a/src/atomic.h
+++ b/src/atomic.h
@@ -59,9 +59,3 @@ atomic_pre_add_u64(volatile uint64_t *ptr, uint64_t incr)
   return ret;
 #endif
 }
-
-static inline uint64_t
-atomic_pre_add_u64(volatile uint64_t *ptr, uint64_t incr)
-{
-  return __sync_add_and_fetch(ptr, incr);
-}