diff --git a/util/read.cpp b/util/read.cpp
index 4af26a9..7b90078 100644
--- a/util/read.cpp
+++ b/util/read.cpp
@@ -1,5 +1,6 @@
 #include <iostream>
 
+#include "yaml-cpp/eventhandler.h"
 #include "yaml-cpp/yaml.h"  // IWYU pragma: keep
 
 class NullEventHandler : public YAML::EventHandler {