diff --git a/benchmarks/db_bench.cc b/benchmarks/db_bench.cc
index 8e3f4e7..e0383d5 100644
--- a/benchmarks/db_bench.cc
+++ b/benchmarks/db_bench.cc
@@ -4,7 +4,7 @@
 
 #include <sys/types.h>
 
-#include <atomic>
+#include <atomic><atomic>
 #include <cstdio>
 #include <cstdlib>