diff --git a/src/module/mod.rs b/src/module/mod.rs
index 435d6cdd..d97e8ec1 100644
--- a/src/module/mod.rs
+++ b/src/module/mod.rs
@@ -1,5 +1,6 @@
 //! Module defining external-loaded modules for Rhai.
 
+#[cfg(feature = "metadata")]
 use crate::api::type_names::format_type;
 use crate::ast::FnAccess;
 use crate::func::{