diff --git a/.zuul.yaml b/.zuul.yaml
index 884d2b80..59bf82be 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -14,8 +14,7 @@
             voting: false
         - sahara-tests-scenario
         - sahara-tests-scenario-v2
-        - sahara-tests-scenario-py3:
-            voting: false
+        - sahara-tests-scenario-py3
         - sahara-tests-tempest
         - sahara-tests-tempest-v2
         - sahara-tests-scenario-rocky
@@ -26,6 +25,7 @@
       jobs:
         - sahara-tests-scenario
         - sahara-tests-scenario-v2
+        - sahara-tests-scenario-py3
         - sahara-tests-tempest
         - sahara-tests-tempest-v2
     experimental:
diff --git a/releasenotes/notes/sahara-scenario-fix-runner-59350d608d19caf9.yaml b/releasenotes/notes/sahara-scenario-fix-runner-59350d608d19caf9.yaml
new file mode 100644
index 00000000..c75cc34f
--- /dev/null
+++ b/releasenotes/notes/sahara-scenario-fix-runner-59350d608d19caf9.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix a strange error where the internally generated test does not start
+    because sahara_tests.scenario is not found when running inside a virtualenv.
diff --git a/sahara_tests/scenario/utils.py b/sahara_tests/scenario/utils.py
index bf0185eb..474a27a5 100644
--- a/sahara_tests/scenario/utils.py
+++ b/sahara_tests/scenario/utils.py
@@ -60,6 +60,12 @@ def run_tests(concurrency, test_dir_path):
     if concurrency:
         command.extend(['--concurrency=%d' % concurrency])
     new_env = os.environ.copy()
+    # Use the same python executable which has started sahara-scenario,
+    # if the PYTHON value has not been set explicitly.
+    # This is important whenever sahara-scenario is executed in a virtualenv
+    # or there are multiple Python versions around.
+    if not new_env.get('PYTHON', ''):
+        new_env['PYTHON'] = sys.executable
     tester_runner = subprocess.Popen(command, env=new_env, cwd=test_dir_path)
     tester_runner.communicate()
     return tester_runner.returncode