diff --git a/packaging/pep517_backend/_backend.py b/packaging/pep517_backend/_backend.py
index 0a8af16..eec8ac0 100644
--- a/packaging/pep517_backend/_backend.py
+++ b/packaging/pep517_backend/_backend.py
@@ -281,6 +281,7 @@ def maybe_prebuild_c_extensions(
     print("* Accelerated build *", file=_standard_error_stream)
     print("**********************", file=_standard_error_stream)
     print("inplace:", build_inplace, file=_standard_error_stream)
+    print("resolved cwd:", Path.cwd().resolve(), file=_standard_error_stream)
 
     if not IS_CPYTHON:
         _warn_that(