diff --git a/crates/hir-ty/src/lib.rs b/crates/hir-ty/src/lib.rs
index 4c9e0a1e11..21c84511dc 100644
--- a/crates/hir-ty/src/lib.rs
+++ b/crates/hir-ty/src/lib.rs
@@ -15,8 +15,10 @@ extern crate rustc_abi;
 #[cfg(not(feature = "in-rust-tree"))]
 extern crate ra_ap_rustc_abi as rustc_abi;
 
-// Use the crates.io version unconditionally until the API settles enough that we can switch to
-// using the in-tree one.
+#[cfg(feature = "in-rust-tree")]
+extern crate rustc_pattern_analysis;
+
+#[cfg(not(feature = "in-rust-tree"))]
 extern crate ra_ap_rustc_pattern_analysis as rustc_pattern_analysis;
 
 mod builder;