1diff --git a/build_helpers/build_helpers.py b/build_helpers/build_helpers.py
2index 6419e26..9e6c21c 100644
3--- a/build_helpers/build_helpers.py
4+++ b/build_helpers/build_helpers.py
5@@ -30,7 +30,7 @@ class ANTLRCommand(Command): # type: ignore # pragma: no cover
6 command = [
7 "java",
8 "-jar",
9- str(build_dir / "bin" / "antlr-4.9.3-complete.jar"),
10+ "@antlr_jar@",
11 "-Dlanguage=Python3",
12 "-o",
13 str(project_root / "omegaconf" / "grammar" / "gen"),