diff --git a/services/core/java/com/android/server/vcn/Vcn.java b/services/core/java/com/android/server/vcn/Vcn.java
index 9c3721b15f32f..382398a210bbe 100644
--- a/services/core/java/com/android/server/vcn/Vcn.java
+++ b/services/core/java/com/android/server/vcn/Vcn.java
@@ -596,7 +596,12 @@ public class Vcn extends Handler {
     /** Retrieves the network score for a VCN Network */
     // Package visibility for use in VcnGatewayConnection and VcnNetworkProvider
     static NetworkScore getNetworkScore() {
-        return new NetworkScore.Builder().setLegacyInt(VCN_LEGACY_SCORE_INT).build();
+        // TODO(b/193687515): Stop setting TRANSPORT_PRIMARY, define a TRANSPORT_VCN, and set in
+        //                    NetworkOffer/NetworkAgent.
+        return new NetworkScore.Builder()
+                .setLegacyInt(VCN_LEGACY_SCORE_INT)
+                .setTransportPrimary(true)
+                .build();
     }
 
     /** Callback used for passing status signals from a VcnGatewayConnection to its managing Vcn. */
diff --git a/tests/vcn/java/com/android/server/vcn/VcnNetworkProviderTest.java b/tests/vcn/java/com/android/server/vcn/VcnNetworkProviderTest.java
index 72db55b3f4c57..e9026e22b6b26 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnNetworkProviderTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnNetworkProviderTest.java
@@ -87,8 +87,8 @@ public class VcnNetworkProviderTest {
                         eq(mVcnNetworkProvider),
                         argThat(
                                 score ->
-                                        score.getLegacyInt()
-                                                == Vcn.getNetworkScore().getLegacyInt()),
+                                        score.getLegacyInt() == Vcn.getNetworkScore().getLegacyInt()
+                                                && score.isTransportPrimary()),
                         any(),
                         any(),
                         cbCaptor.capture());