diff --git a/postgresql_embedded/build/build.rs b/postgresql_embedded/build/build.rs
index c72336c..d3d4e39 100644
--- a/postgresql_embedded/build/build.rs
+++ b/postgresql_embedded/build/build.rs
@@ -1,3 +1,4 @@
+#[cfg(feature = "bundled")]
 mod bundle;
 
 use anyhow::Result;