diff --git a/README.md b/README.md
index 4ea2077..92ef5fa 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,7 @@ No modules.
 | <a name="input_parameter_group_name"></a> [parameter\_group\_name](#input\_parameter\_group\_name) | n/a | `string` | `""` | no |
 | <a name="input_port"></a> [port](#input\_port) | n/a | `number` | `6379` | no |
 | <a name="input_security_group_ids"></a> [security\_group\_ids](#input\_security\_group\_ids) | n/a | `list(string)` | `[]` | no |
+| <a name="input_snapshot_retention_limit"></a> [snapshot\_retention\_limit](#input\_snapshot\_retention\_limit) | The number of days for which ElastiCache will retain automatic cache cluster snapshots before deleting them. For example, if you set SnapshotRetentionLimit to 5, then a snapshot that was taken today will be retained for 5 days before being deleted. | `number` | `7` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | n/a | `map(string)` | <pre>{<br>  "Owner": "Batcave"<br>}</pre> | no |
 | <a name="input_vpc_id"></a> [vpc\_id](#input\_vpc\_id) | n/a | `string` | n/a | yes |
 
diff --git a/main.tf b/main.tf
index 734d62d..177414d 100644
--- a/main.tf
+++ b/main.tf
@@ -10,19 +10,17 @@ terraform {
 }
 
 resource "aws_elasticache_cluster" "redis" {
-  cluster_id           = var.cluster_id
-  engine               = var.engine
-  engine_version       = var.engine_version
-  node_type            = var.node_type
-  num_cache_nodes      = var.num_cache_nodes
-  parameter_group_name = var.parameter_group_name
-  port                 = var.port
-  security_group_ids   = var.security_group_ids
-
-  subnet_group_name = aws_subnet.private.name
-
-
-  tags = var.tags
+  cluster_id               = var.cluster_id
+  engine                   = var.engine
+  engine_version           = var.engine_version
+  node_type                = var.node_type
+  num_cache_nodes          = var.num_cache_nodes
+  parameter_group_name     = var.parameter_group_name
+  port                     = var.port
+  security_group_ids       = var.security_group_ids
+  subnet_group_name        = aws_subnet.private.name
+  tags                     = var.tags
+  snapshot_retention_limit = var.snapshot_retention_limit
 }
 
 resource "aws_subnet" "private" {
diff --git a/variables.tf b/variables.tf
index bc1cb53..16b6213 100644
--- a/variables.tf
+++ b/variables.tf
@@ -54,3 +54,9 @@ variable "tags" {
     Owner = "Batcave"
   }
 }
+
+variable "snapshot_retention_limit" {
+  type        = number
+  default     = 7
+  description = "The number of days for which ElastiCache will retain automatic cache cluster snapshots before deleting them. For example, if you set SnapshotRetentionLimit to 5, then a snapshot that was taken today will be retained for 5 days before being deleted."
+}