diff --git a/src/cluster/serializer/broker/Serializer.cc b/src/cluster/serializer/broker/Serializer.cc
index 7495e8eadc..8c0a72e122 100644
--- a/src/cluster/serializer/broker/Serializer.cc
+++ b/src/cluster/serializer/broker/Serializer.cc
@@ -2,6 +2,7 @@
 
 #include "zeek/cluster/serializer/broker/Serializer.h"
 
+#include <cinttypes>
 #include <optional>
 
 #include "zeek/DebugLogger.h"