diff --git a/modules/net-vpc-firewall/README.md b/modules/net-vpc-firewall/README.md
index a393a661..af04343f 100644
--- a/modules/net-vpc-firewall/README.md
+++ b/modules/net-vpc-firewall/README.md
@@ -138,7 +138,7 @@ module "firewall" {
 
 ### Including source & destination ranges
 
-Custom rules now support including both source & destination ranges in Ingress and Egress rules:
+Custom rules now support including both source & destination ranges in ingress and egress rules:
 
 ```hcl
 module "firewall" {