diff --git a/roles/run-tempest/README.rst b/roles/run-tempest/README.rst
index 384ca38..71b8e4f 100644
--- a/roles/run-tempest/README.rst
+++ b/roles/run-tempest/README.rst
@@ -39,3 +39,20 @@
    :default: smoke
 
    The Tempest tox environment to run.
+
+.. zuul:rolevar:: tempest_black_regex
+   :default: ''
+
+   A regular expression used to skip the tests.
+
+   It works only when used with some specific tox environments
+   ('all', 'all-plugin'.)
+
+   Multi-line and commented regexs can be achieved by doing this:
+
+       ::
+           vars:
+             tempest_black_regex: |
+               (?x)    # Ignore comments and whitespaces
+               # Line with only a comment.
+               (tempest.api.identity).*$
diff --git a/roles/run-tempest/defaults/main.yaml b/roles/run-tempest/defaults/main.yaml
index 85e94f2..c89eb93 100644
--- a/roles/run-tempest/defaults/main.yaml
+++ b/roles/run-tempest/defaults/main.yaml
@@ -1,3 +1,4 @@
 devstack_base_dir: /opt/stack
 tempest_test_regex: ''
 tox_envlist: smoke
+tempest_black_regex: ''
diff --git a/roles/run-tempest/tasks/main.yaml b/roles/run-tempest/tasks/main.yaml
index b68507a..54ddc71 100644
--- a/roles/run-tempest/tasks/main.yaml
+++ b/roles/run-tempest/tasks/main.yaml
@@ -35,7 +35,9 @@
       when: blacklist_stat.stat.exists
 
 - name: Run Tempest
-  command: tox -e {{tox_envlist}} -- {{tempest_test_regex|quote}} {{blacklist_option|default('')}} --concurrency={{tempest_concurrency|default(default_concurrency)}}
+  command: tox -e {{tox_envlist}} -- {{tempest_test_regex|quote}} {{blacklist_option|default('')}} \
+            --concurrency={{tempest_concurrency|default(default_concurrency)}} \
+            --black-regex={{tempest_black_regex|quote}}
   args:
     chdir: "{{devstack_base_dir}}/tempest"
   become: true