diff --git a/lib/base/CMakeLists.txt b/lib/base/CMakeLists.txt
index 9707d293593..d22000a922b 100644
--- a/lib/base/CMakeLists.txt
+++ b/lib/base/CMakeLists.txt
@@ -59,7 +59,7 @@ set(base_SOURCES
   scriptframe.cpp scriptframe.hpp
   scriptglobal.cpp scriptglobal.hpp
   scriptutils.cpp scriptutils.hpp
-  serializer.cpp serializer.hpp
+  serializer.cpp serializer.hpp serializer-script.cpp
   shared.hpp
   shared-object.hpp
   singleton.hpp
diff --git a/lib/base/serializer-script.cpp b/lib/base/serializer-script.cpp
new file mode 100644
index 00000000000..38c0f838066
--- /dev/null
+++ b/lib/base/serializer-script.cpp
@@ -0,0 +1,8 @@
+/* Icinga 2 | (c) 2021 Icinga GmbH | GPLv2+ */
+
+#include "base/function.hpp"
+#include "base/serializer.hpp"
+
+using namespace icinga;
+
+REGISTER_FUNCTION(Internal, serialize, &Serialize, "value:attribute_types");