diff --git a/o11nplugin-contrail-config/buildNumber.properties b/o11nplugin-contrail-config/buildNumber.properties
index 432e74dc..debfd364 100644
--- a/o11nplugin-contrail-config/buildNumber.properties
+++ b/o11nplugin-contrail-config/buildNumber.properties
@@ -1,3 +1,3 @@
 #maven.buildNumber.plugin properties file
-#Fri Apr 20 16:54:21 CEST 2018
-buildNumber=1290
+#Thu Apr 26 13:03:36 CEST 2018
+buildNumber=1309
diff --git a/o11nplugin-contrail-config/src/main/kotlin/net/juniper/contrail/vro/config/Config.kt b/o11nplugin-contrail-config/src/main/kotlin/net/juniper/contrail/vro/config/Config.kt
index 2a146812..cabfb1e4 100644
--- a/o11nplugin-contrail-config/src/main/kotlin/net/juniper/contrail/vro/config/Config.kt
+++ b/o11nplugin-contrail-config/src/main/kotlin/net/juniper/contrail/vro/config/Config.kt
@@ -17,6 +17,7 @@ val modelClasses = setOf(
     the<NetworkPolicy>(),
     the<SecurityGroup>(),
     the<VirtualMachineInterface>(),
+    the<VirtualMachine>(),
     the<ServiceInstance>(),
     the<ServiceTemplate>(),
     the<PortTuple>(),
@@ -110,9 +111,14 @@ val hiddenRoots = setOf(
 val hiddenRelations = setOf(
     pair<FloatingIp, Project>(),
     pair<VirtualMachineInterface, PortTuple>(),
+    pair<VirtualMachineInterface, VirtualMachine>(),
     pair<ServiceTemplate, ServiceApplianceSet>()
 )
 
+val relationAsProperty = setOf(
+    pair<VirtualMachineInterface, VirtualMachine>()
+)
+
 val reversedRelations = setOf(
     pair<FloatingIp, VirtualMachineInterface>()
 )
@@ -167,6 +173,12 @@ fun ObjectClass.isRelationEditable(child: ObjectClass) =
     ! child.isInternal &&
     ! nonEditableReference.containsUnordered(simpleName, child.simpleName)
 
+fun Class<*>.isInPropertyRelationTo(child: Class<*>) =
+    relationAsProperty.contains(simpleName, child.simpleName)
+
+private fun <T> Set<Pair<T, T>>.contains(first: T, second: T) =
+    contains(Pair(first, second))
+
 private fun <T> Set<Pair<T, T>>.containsUnordered(first: T, second: T) =
     contains(Pair(first, second)) || contains(Pair(second, first))
 
diff --git a/o11nplugin-contrail-custom/src/main/kotlin/net/juniper/contrail/vro/CustomReferenceProperty.kt b/o11nplugin-contrail-custom/src/main/kotlin/net/juniper/contrail/vro/CustomReferenceProperty.kt
index 3d570ade..bd136c69 100644
--- a/o11nplugin-contrail-custom/src/main/kotlin/net/juniper/contrail/vro/CustomReferenceProperty.kt
+++ b/o11nplugin-contrail-custom/src/main/kotlin/net/juniper/contrail/vro/CustomReferenceProperty.kt
@@ -5,6 +5,7 @@
 package net.juniper.contrail.vro
 
 import net.juniper.contrail.vro.config.backReferenceClass
+import net.juniper.contrail.vro.config.isInPropertyRelationTo
 import net.juniper.contrail.vro.config.refsPropertyPrefix
 import net.juniper.contrail.vro.config.refsPropertySuffix
 import net.juniper.contrail.vro.config.isInReversedRelationTo
@@ -30,5 +31,8 @@ val Method.referencePropertyClass get() =
     referenceClass ?: backReferenceClass
 
 val Method.isReferenceProperty get() =
-    referenceClass?.let { declaringClass.isInReversedRelationTo(it) } ?: false ||
+    referenceClass?.let {
+        declaringClass.isInReversedRelationTo(it) ||
+        declaringClass.isInPropertyRelationTo(it)
+    } ?: false ||
     backReferenceClass?.let { !declaringClass.isInReversedRelationTo(it) } ?: false