diff --git a/examples/use-cases/Kernel2Vxlan2Kernel&Vfio2Noop/README.md b/examples/use-cases/Kernel2Vxlan2Kernel&Vfio2Noop/README.md
index 6f85ee92867c..977c4c772584 100644
--- a/examples/use-cases/Kernel2Vxlan2Kernel&Vfio2Noop/README.md
+++ b/examples/use-cases/Kernel2Vxlan2Kernel&Vfio2Noop/README.md
@@ -81,7 +81,7 @@ spec:
       containers:
         - name: nse
           env:
-            - name: NSE_CIDR_PREFIX
+            - name: NSM_CIDR_PREFIX
               value: 172.16.1.100/31
       nodeSelector:
         kubernetes.io/hostname: ${NODES[1]}