diff --git a/cmd/banforge/command/fw.go b/cmd/banforge/command/fw.go
index 0f16932..8581218 100644
--- a/cmd/banforge/command/fw.go
+++ b/cmd/banforge/command/fw.go
@@ -43,7 +43,7 @@ var UnbanCmd = &cobra.Command{
 				return fmt.Errorf("IP can't be empty")
 			}
 			if net.ParseIP(ip) == nil {
-				return fmt.Errorf("Invalid IP")
+				return fmt.Errorf("invalid IP")
 			}
 			if err != nil {
 				return err
@@ -92,7 +92,7 @@ var BanCmd = &cobra.Command{
 				return fmt.Errorf("IP can't be empty")
 			}
 			if net.ParseIP(ip) == nil {
-				return fmt.Errorf("Invalid IP")
+				return fmt.Errorf("invalid IP")
 			}
 			if err != nil {
 				return err