diff --git a/src/tools/rust-analyzer/crates/ide/Cargo.toml b/src/tools/rust-analyzer/crates/ide/Cargo.toml
index 006fd222c6162..e8f229cda40b5 100644
--- a/src/tools/rust-analyzer/crates/ide/Cargo.toml
+++ b/src/tools/rust-analyzer/crates/ide/Cargo.toml
@@ -51,5 +51,8 @@ expect-test = "1.4.0"
 test-utils.workspace = true
 test-fixture.workspace = true
 
+[features]
+in-rust-tree = ["ide-assists/in-rust-tree", "ide-diagnostics/in-rust-tree"]
+
 [lints]
 workspace = true