diff --git a/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGc.scala b/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGc.scala
index bbd1f59..c6a4534 100644
--- a/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGc.scala
+++ b/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGc.scala
@@ -24,7 +24,6 @@
 
 class CreateChangesTriggeringGc extends ProjectSimulation {
   private val data: FeederBuilder = jsonFile(resource).convert(keys).circular
-  private val numberKey = "_number"
 
   private lazy val minuteMultiplier = getProperty("minute_multiplier", 1).toInt
   lazy val secondsToNextEvaluation: Int = 60 * minuteMultiplier
@@ -51,7 +50,7 @@
     .feed(data)
     .exec(httpRequest
       .body(ElFileBody(body)).asJson
-      .check(regex("\"" + numberKey + "\":(\\d+),").saveAs(numberKey)))
+      .check(regex("\"_" + numberKey + "\":(\\d+),").saveAs(numberKey)))
     .exec(session => {
       deleteChanges.upToNumber = session(numberKey).as[Int]
       session
diff --git a/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/DeleteChangesAfterGc.scala b/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/DeleteChangesAfterGc.scala
index 4775551..3019aed 100644
--- a/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/DeleteChangesAfterGc.scala
+++ b/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/DeleteChangesAfterGc.scala
@@ -22,7 +22,6 @@
 
 class DeleteChangesAfterGc extends GerritSimulation {
   private val data: FeederBuilder = jsonFile(resource).convert(keys).circular
-  private val numberKey = "number"
   var upToNumber = 1
 
   private lazy val OrderOfChangesToDelete = 200