diff --git a/lang/python/Makefile.in b/lang/python/Makefile.in
index c0fc091..d567ecb 100644
--- a/lang/python/Makefile.in
+++ b/lang/python/Makefile.in
@@ -802,6 +802,7 @@ install-exec-local:
 	  --build-base="$$(basename "$${PYTHON}")-gpg" \
 	  install \
 	  --prefix "$(DESTDIR)$(prefix)" \
+	  $${SETUP_PY_EXTRA_OPTS:-} \
 	  --verbose ; \
 	done