diff --git a/roles/run-tempest/tasks/main.yaml b/roles/run-tempest/tasks/main.yaml
index e9c8e92..999e256 100644
--- a/roles/run-tempest/tasks/main.yaml
+++ b/roles/run-tempest/tasks/main.yaml
@@ -70,22 +70,16 @@
 # TODO(kopecmartin) remove this after all consumers of the role have switched
 # to tempest_exclude_regex option, until then it's kept here for the backward
 # compatibility
-- name: Set tempest_exclude_regex
+- name: Build exclude regex (old param)
   set_fact:
-    tempest_exclude_regex: "{{ tempest_black_regex }}"
+    tempest_test_exclude_regex: "--black-regex={{tempest_black_regex|quote}}"
   when:
     - tempest_black_regex is defined
     - tempest_exclude_regex is not defined
 
-- name: Build exclude regex (old param)
-  set_fact:
-    tempest_exclude_regex: "--black-regex={{tempest_black_regex|quote}}"
-  when:
-    - tempest_black_regex is defined
-
 - name: Build exclude regex (new param)
   set_fact:
-    tempest_exclude_regex: "--exclude-regex={{tempest_exclude_regex|quote}}"
+    tempest_test_exclude_regex: "--exclude-regex={{tempest_exclude_regex|quote}}"
   when:
     - tempest_black_regex is not defined
     - tempest_exclude_regex is defined
@@ -94,7 +88,7 @@
   command: tox -e {{tox_envlist}} {{tox_extra_args}} -- {{tempest_test_regex|quote}} \
            {{blacklist_option|default('')}}  {{exclude_list_option|default('')}} \
             --concurrency={{tempest_concurrency|default(default_concurrency)}} \
-           {{tempest_exclude_regex|default('')}}
+           {{tempest_test_exclude_regex|default('')}}
   args:
     chdir: "{{devstack_base_dir}}/tempest"
   register: tempest_run_result