diff --git a/TOML.sublime-syntax b/TOML.sublime-syntax
index ea8e632..b6fefc9 100644
--- a/TOML.sublime-syntax
+++ b/TOML.sublime-syntax
@@ -9,6 +9,7 @@ file_extensions:
   - Cargo.lock
   - Gopkg.lock
   - Pipfile
+  - poetry.lock
 
 scope: source.toml