diff --git a/tasks/main.yml b/tasks/main.yml
index 2934a9e..888a54e 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -44,7 +44,7 @@
     name: "python_venv_build"
   vars:
     venv_python_executable: "{{ zun_venv_python_executable }}"
-    venv_build_constraints: "{{ _u_c_contents.content.split('\n') | reject('match', '[kuryr\\-lib=*]') | list }}"
+    venv_build_constraints: "{{ _u_c_contents.content.split('\n') | reject('match', '^kuryr-lib=') | list }}"
     venv_install_destination_path: "{{ zun_bin | dirname }}"
     venv_install_distro_package_list: "{{ zun_distro_packages }}"
     venv_pip_install_args: "{{ zun_pip_install_args }}"