diff --git a/src/main/java/org/onosproject/segmentrouting/config/PwaasConfig.java b/src/main/java/org/onosproject/segmentrouting/config/PwaasConfig.java
index 18fc738..feb0049 100644
--- a/src/main/java/org/onosproject/segmentrouting/config/PwaasConfig.java
+++ b/src/main/java/org/onosproject/segmentrouting/config/PwaasConfig.java
@@ -215,8 +215,8 @@
         if ((!ingressInner.equals(VlanId.NONE) &&
                 ingressOuter.equals(VlanId.NONE) &&
                 !egressOuter.equals(VlanId.NONE))
-           || (!ingressOuter.equals(VlanId.NONE) &&
-                egressOuter.equals(VlanId.NONE) &&
+           || (egressOuter.equals(VlanId.NONE) &&
+                !egressInner.equals(VlanId.NONE) &&
                 !ingressOuter.equals(VlanId.NONE))) {
                 throw new IllegalArgumentException(String.valueOf(String.format("Support for double-tag<->" +
                                                                                 "single-tag is not supported" +