diff --git a/crates/zed/src/languages/toml/config.toml b/crates/zed/src/languages/toml/config.toml
index 4e89f5cabd..188239a8e0 100644
--- a/crates/zed/src/languages/toml/config.toml
+++ b/crates/zed/src/languages/toml/config.toml
@@ -1,5 +1,5 @@
 name = "TOML"
-path_suffixes = ["toml"]
+path_suffixes = ["Cargo.lock", "toml"]
 line_comment = "# "
 autoclose_before = ",]}"
 brackets = [