diff --git a/common/README.md b/common/README.md
index 5520593..f20c274 100644
--- a/common/README.md
+++ b/common/README.md
@@ -34,10 +34,10 @@ No modules.
 | <a name="input_egress_security_groups"></a> [egress\_security\_groups](#input\_egress\_security\_groups) | List of egress security groups (all ports) | `list(string)` | `[]` | no |
 | <a name="input_enable_self"></a> [enable\_self](#input\_enable\_self) | Enable\|Disable self full access | `bool` | `false` | no |
 | <a name="input_ingress_networks"></a> [ingress\_networks](#input\_ingress\_networks) | List of ingress networks for access (with all pre-defined ingress ports) | `list(string)` | `[]` | no |
-| <a name="input_ingress_port_list"></a> [ingress\_port\_list](#input\_ingress\_port\_list) | Ingress port list of 5-tuple: from, to, proto, description, and cidr(list) | `list` | <pre>[<br>  []<br>]</pre> | no |
+| <a name="input_ingress_port_list"></a> [ingress\_port\_list](#input\_ingress\_port\_list) | Ingress port list of 5-tuple: from, to, proto, description, and cidr(list) | `list` | `[]` | no |
 | <a name="input_ingress_port_map"></a> [ingress\_port\_map](#input\_ingress\_port\_map) | Ingress port list of objects: from, to, proto, description and cidr(list) | <pre>list(object({<br>    from        = number<br>    to          = number<br>    proto       = any<br>    description = string<br>    cidr        = list(string)<br>  }))</pre> | `[]` | no |
 | <a name="input_ingress_security_groups"></a> [ingress\_security\_groups](#input\_ingress\_security\_groups) | List of ingress security groups for all ports | `list(string)` | `[]` | no |
-| <a name="input_ingress_self_port_list"></a> [ingress\_self\_port\_list](#input\_ingress\_self\_port\_list) | Ingress port list of 4-tuple: from, to, proto, description | `list` | <pre>[<br>  []<br>]</pre> | no |
+| <a name="input_ingress_self_port_list"></a> [ingress\_self\_port\_list](#input\_ingress\_self\_port\_list) | Ingress port list of 4-tuple: from, to, proto, description | `list` | `[]` | no |
 | <a name="input_ingress_self_port_map"></a> [ingress\_self\_port\_map](#input\_ingress\_self\_port\_map) | Ingress self access port list of objects: from, to, proto, description | <pre>list(object({<br>    from        = number<br>    to          = number<br>    proto       = any<br>    description = string<br>  }))</pre> | `[]` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | Extra security group tags | `map` | `{}` | no |
 | <a name="input_use_vpc_cidr"></a> [use\_vpc\_cidr](#input\_use\_vpc\_cidr) | Enable\|Disable use of VPC CIDR block in the ingress\_networks | `bool` | `false` | no |
diff --git a/common/variables.port_list.tf b/common/variables.port_list.tf
index 25b9d58..792c79b 100644
--- a/common/variables.port_list.tf
+++ b/common/variables.port_list.tf
@@ -1,7 +1,7 @@
 variable "ingress_port_list" {
   description = "Ingress port list of 5-tuple: from, to, proto, description, and cidr(list)"
   #  type        = list(tuple([number, number, any, string, list]))
-  default = [[]]
+  default = []
 }
 
 variable "ingress_port_map" {
@@ -19,7 +19,7 @@ variable "ingress_port_map" {
 variable "ingress_self_port_list" {
   description = "Ingress port list of 4-tuple: from, to, proto, description"
   #  type        = list(tuple([number, number, any, string]))
-  default = [[]]
+  default = []
 }
 
 variable "ingress_self_port_map" {