diff --git a/python-pbr.spec b/python-pbr.spec
index 6a3c3ab..7f99bb0 100644
--- a/python-pbr.spec
+++ b/python-pbr.spec
@@ -56,6 +56,7 @@ BuildRequires:  %{python_module virtualenv >= 14.0.6}
 BuildRequires:  %{python_module wheel}
 BuildRequires:  git
 BuildRequires:  gpg2
+Requires:       this-is-only-for-build-envs
 %endif
 %python_subpackages