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 404df73..014e17f 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
@@ -31,7 +31,7 @@
   private lazy val LooseObjectsPerChange = 2
   private lazy val ChangesMultiplier = 8
   lazy val changesPerSecond: Int = 4 * ChangesMultiplier
-  val ChangesForLastEvaluation = 1
+  val ChangesForLastEvaluation: Int = single
 
   lazy val secondsForLastEvaluation: Int = SecondsPerWeightUnit
   private lazy val changesToEnqueueGc = DefaultLooseObjectsToEnqueueGc * ChangesMultiplier / LooseObjectsPerChange
diff --git a/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGcWithProject.scala b/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGcWithProject.scala
index a6d5f63..d248703 100644
--- a/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGcWithProject.scala
+++ b/src/test/scala/com/ericsson/gerrit/plugins/gcconductor/scenarios/CreateChangesTriggeringGcWithProject.scala
@@ -31,7 +31,7 @@
   setUp(
     createProject.test.inject(
       nothingFor(stepWaitTime(createProject) seconds),
-      atOnceUsers(1)
+      atOnceUsers(single)
     ),
     createChanges.test.inject(
       nothingFor(stepWaitTime(createChanges) seconds),
@@ -51,7 +51,7 @@
     ),
     deleteProject.test.inject(
       nothingFor(stepWaitTime(deleteProject) seconds),
-      atOnceUsers(1)
+      atOnceUsers(single)
     ),
   ).protocols(httpProtocol)
 }