diff --git a/common/variables.common.subnets.tf b/common/variables.common.subnets.tf
index 1e7f772..4b45497 100644
--- a/common/variables.common.subnets.tf
+++ b/common/variables.common.subnets.tf
@@ -8,7 +8,6 @@ variable "public_subnets" {
     #      subnets     = list(string)
     #      labels      = list(string)
     #      availability_zones = list(string)
-    # optional
     # tags = map(string)
   }))
   default = []
@@ -24,7 +23,6 @@ variable "private_subnets" {
     #      subnets     = list(string)
     #      labels      = list(string)
     #      availability_zones = list(string)
-    # optional
     # tags = map(string)
   }))
   default = []