Add missing include

diff --git a/pdns/stat_t.hh b/pdns/stat_t.hh
index 2a765c26a6dff92a9765941cd6b45ce4f8f067a9..d318c980b2599e67a16262446dfb729c908f8084 100644 (file)
--- a/pdns/stat_t.hh
+++ b/pdns/stat_t.hh
@@ -21,6 +21,8 @@
  */
 #pragma once
 
+#include <atomic>
+
 #define CPU_LEVEL1_DCACHE_LINESIZE 64 // Until we know better via configure/getconf
 
 namespace pdns {