diff --git a/app/src/test/java/info/nightscout/androidaps/interfaces/ConstraintsCheckerTest.kt b/app/src/test/java/info/nightscout/androidaps/interfaces/ConstraintsCheckerTest.kt
index cd3aed84e4..29c6f48229 100644
--- a/app/src/test/java/info/nightscout/androidaps/interfaces/ConstraintsCheckerTest.kt
+++ b/app/src/test/java/info/nightscout/androidaps/interfaces/ConstraintsCheckerTest.kt
@@ -123,7 +123,7 @@ class ConstraintsCheckerTest : TestBaseWithProfile() {
         openAPSSMBPlugin = OpenAPSSMBPlugin(injector, aapsLogger, rxBus, constraintChecker, resourceHelper, profileFunction, context, activePlugin, treatmentsPlugin, iobCobCalculatorPlugin, hardLimits, profiler, fabricPrivacy, sp)
         openAPSAMAPlugin = OpenAPSAMAPlugin(injector, aapsLogger, rxBus, constraintChecker, resourceHelper, profileFunction, context, activePlugin, treatmentsPlugin, iobCobCalculatorPlugin, hardLimits, profiler, fabricPrivacy)
         safetyPlugin = SafetyPlugin(injector, aapsLogger, resourceHelper, sp, rxBus, constraintChecker, openAPSAMAPlugin, openAPSSMBPlugin, sensitivityOref1Plugin, activePlugin, hardLimits, buildHelper, treatmentsPlugin, Config())
-        val constraintsPluginsList = ArrayList<PluginBase?>()
+        val constraintsPluginsList = ArrayList<PluginBase>()
         constraintsPluginsList.add(safetyPlugin)
         constraintsPluginsList.add(objectivesPlugin)
         constraintsPluginsList.add(comboPlugin)