diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index 32a194e3e07a5a60d4c00dfdcfd25ad31ef38b6e..0ab9423d009f5b8c189dddb4a1f8f81c8a3a2101 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -178,8 +178,8 @@ setup() {
 
 cleanup() {
 	[ ${cleanup_done} -eq 1 ] && return
-	ip netns del ${NS_A} 2 > /dev/null
-	ip netns del ${NS_B} 2 > /dev/null
+	ip netns del ${NS_A} 2> /dev/null
+	ip netns del ${NS_B} 2> /dev/null
 	cleanup_done=1
 }