diff --git a/python-wheel.spec b/python-wheel.spec
index 1f8aaec..4cf0177 100644
--- a/python-wheel.spec
+++ b/python-wheel.spec
@@ -1,3 +1,4 @@
+%global _with_bootstrap 1
 # The function of bootstrap is that it builds the package with flit_core.wheel
 # and installs it by unzipping it.
 # A real build uses %%pyproject_wheel and %%pyproject_install.