diff --git a/src/util/time.h b/src/util/time.h
index b0439bbbd..564d772ed 100644
--- a/src/util/time.h
+++ b/src/util/time.h
@@ -9,6 +9,7 @@
 
 #include <stdint.h>
 #include <string>
+#include <chrono>
 
 class CClock {
 public: