diff --git a/infrared_plugin/plugin.spec b/infrared_plugin/plugin.spec
index 38ed9b67e..b49ec0d71 100644
--- a/infrared_plugin/plugin.spec
+++ b/infrared_plugin/plugin.spec
@@ -132,7 +132,6 @@ subparsers:
             type: Value
             help: enable/disable verbose log entries in tests results log file
             ansible_variable: test_log_debug
-            default: yes
           test-case-timeout:
             type: Value
             help: Test case timeout in seconds
diff --git a/roles/tobiko-configure/defaults/main.yaml b/roles/tobiko-configure/defaults/main.yaml
index 9bb35c07d..e3ed2cee1 100644
--- a/roles/tobiko-configure/defaults/main.yaml
+++ b/roles/tobiko-configure/defaults/main.yaml
@@ -14,7 +14,7 @@ test_default_conf:
     undercloud_ssh_hostname: "{{ undercloud_ssh_hostname }}"
     overcloud_ssh_username: "{{ overcloud_ssh_username }}"
 
-test_log_debug: false
+test_log_debug: ''
 
 test_case_timeout: 1800.
 test_runner_timeout: 14400.