diff --git a/test-salt-models-pipeline.groovy b/test-salt-models-pipeline.groovy
index 1fcf727..2290d21 100644
--- a/test-salt-models-pipeline.groovy
+++ b/test-salt-models-pipeline.groovy
@@ -148,7 +148,7 @@
               [$class: 'StringParameterValue', name: 'SYSTEM_GIT_URL', value: SYSTEM_GIT_URL],
               [$class: 'StringParameterValue', name: 'MAX_CPU_PER_JOB', value: MAX_CPU_PER_JOB],
               [$class: 'StringParameterValue', name: 'SYSTEM_GIT_REF', value: SYSTEM_GIT_REF],
-              [$class: 'BooleanParameterValue', name: 'LEGACY_TEST_MODE', value: LEGACY_TEST_MODE]
+              [$class: 'BooleanParameterValue', name: 'LEGACY_TEST_MODE', value: LEGACY_TEST_MODE.toBoolean()]
             ]}
           acc++;
         }