diff --git a/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy b/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy
index 26655a4..a9a2005 100644
--- a/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-2.8/voltha-physical-soak-dt-tests.groovy
@@ -31,7 +31,7 @@
     label "${params.buildNode}"
   }
   options {
-    timeout(time: ${params.timeout}, unit: 'MINUTES')
+    timeout(time: "${timeout}", unit: 'MINUTES')
   }
 
   environment {