diff --git a/crates/ra_syntax/Cargo.toml b/crates/ra_syntax/Cargo.toml
index 1c0b184e1f..b6ebb129d0 100644
--- a/crates/ra_syntax/Cargo.toml
+++ b/crates/ra_syntax/Cargo.toml
@@ -18,13 +18,14 @@ rustc-hash = "1.0.1"
 arrayvec = "0.5.1"
 once_cell = "1.2.0"
 
+ra_text_edit = { path = "../ra_text_edit" }
+ra_parser = { path = "../ra_parser" }
+
 # This crate transitively depends on `smol_str` via `rowan`.
 # ideally, `serde` should be enabled by `ra_lsp_server`, but we enable it here
 # to reduce number of compilations
 smol_str = { version = "0.1.12", features = ["serde"] }
-
-ra_text_edit = { path = "../ra_text_edit" }
-ra_parser = { path = "../ra_parser" }
+serde = { version = "1", features = ["derive"] }
 
 [dev-dependencies]
 test_utils = { path = "../test_utils" }