diff --git a/include/PoolObjectSQL.h b/include/PoolObjectSQL.h
index ba038b1a57..2c85767960 100644
--- a/include/PoolObjectSQL.h
+++ b/include/PoolObjectSQL.h
@@ -22,6 +22,7 @@
 #include "Template.h"
 
 #include <string>
+#include <memory>
 
 class PoolObjectAuth;