diff --git a/src/kdbindings/connection_evaluator.h b/src/kdbindings/connection_evaluator.h
index 184644e..d639a2e 100644
--- a/src/kdbindings/connection_evaluator.h
+++ b/src/kdbindings/connection_evaluator.h
@@ -10,6 +10,7 @@
 */
 #pragma once
 
+#include <algorithm>
 #include <functional>
 #include <mutex>