diff --git a/pdm_build.py b/pdm_build.py
index 67e71cbb0..b1b662bd3 100644
--- a/pdm_build.py
+++ b/pdm_build.py
@@ -3,7 +3,7 @@ from typing import Any
 
 from pdm.backend.hooks import Context
 
-TIANGOLO_BUILD_PACKAGE = os.getenv("TIANGOLO_BUILD_PACKAGE", "typer")
+TIANGOLO_BUILD_PACKAGE = os.getenv("TIANGOLO_BUILD_PACKAGE")
 
 
 def pdm_build_initialize(context: Context) -> None: