diff --git a/tests/cts/net/src/android/net/cts/DscpPolicyTest.kt b/tests/cts/net/src/android/net/cts/DscpPolicyTest.kt
index 9cd8418..e8add6b 100644
--- a/tests/cts/net/src/android/net/cts/DscpPolicyTest.kt
+++ b/tests/cts/net/src/android/net/cts/DscpPolicyTest.kt
@@ -146,6 +146,9 @@
 
     @After
     fun tearDown() {
+        if (!kernelIsAtLeast(5, 4)) {
+            return;
+        }
         agentsToCleanUp.forEach { it.unregister() }
         callbacksToCleanUp.forEach { cm.unregisterNetworkCallback(it) }