diff --git a/src/script/api/script_admin.cpp b/src/script/api/script_admin.cpp
index a84f999dd7..0935ef2a25 100644
--- a/src/script/api/script_admin.cpp
+++ b/src/script/api/script_admin.cpp
@@ -14,6 +14,7 @@
 #include "script_log.hpp"
 #include "../../network/network_admin.h"
 #include "../script_instance.hpp"
+#include "../../string_func.hpp"
 
 #include "../../safeguards.h"