diff --git a/Userland/Libraries/LibJS/Script.cpp b/Userland/Libraries/LibJS/Script.cpp
index 6c6c55fc5e0..36f63acab55 100644
--- a/Userland/Libraries/LibJS/Script.cpp
+++ b/Userland/Libraries/LibJS/Script.cpp
@@ -43,6 +43,8 @@ void Script::visit_edges(Cell::Visitor& visitor)
 {
     Base::visit_edges(visitor);
     visitor.visit(m_realm);
+    if (m_host_defined)
+        m_host_defined->visit_host_defined_self(visitor);
 }
 
 }