diff --git a/tools/testing/selftests/tc-testing/plugin-lib/buildebpfPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/buildebpfPlugin.py
index e98c36750fae..d34fe06268d2 100644
--- a/tools/testing/selftests/tc-testing/plugin-lib/buildebpfPlugin.py
+++ b/tools/testing/selftests/tc-testing/plugin-lib/buildebpfPlugin.py
@@ -54,7 +54,7 @@ class SubPlugin(TdcPlugin):
             shell=True,
             stdout=subprocess.PIPE,
             stderr=subprocess.PIPE,
-            env=ENVIR)
+            env=os.environ.copy())
         (rawout, serr) = proc.communicate()
 
         if proc.returncode != 0 and len(serr) > 0:
diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/basic.json b/tools/testing/selftests/tc-testing/tc-tests/filters/basic.json
index 2e361cea63bc..98a20faf3198 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/filters/basic.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/filters/basic.json
@@ -6,6 +6,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -25,6 +28,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -44,6 +50,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -63,6 +72,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -82,6 +94,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -101,6 +116,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -120,6 +138,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -139,6 +160,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -158,6 +182,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -177,6 +204,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -196,6 +226,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -215,6 +248,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -234,6 +270,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -253,6 +292,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -272,6 +314,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -291,6 +336,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
@@ -310,6 +358,9 @@
             "filter",
             "basic"
         ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],