diff --git a/builtin/providers/aws/resource_aws_spot_instance_request.go b/builtin/providers/aws/resource_aws_spot_instance_request.go
index 26a88a11fd..1369c972e8 100644
--- a/builtin/providers/aws/resource_aws_spot_instance_request.go
+++ b/builtin/providers/aws/resource_aws_spot_instance_request.go
@@ -58,6 +58,11 @@ func resourceAwsSpotInstanceRequest() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			}
+			s["block_duration_minutes"] = &schema.Schema{
+				Type:     schema.TypeInt,
+				Optional: true,
+				ForceNew: true,
+			}
 
 			return s
 		}(),
@@ -97,6 +102,10 @@ func resourceAwsSpotInstanceRequestCreate(d *schema.ResourceData, meta interface
 		},
 	}
 
+	if v, ok := d.GetOk("block_duration_minutes"); ok {
+		spotOpts.BlockDurationMinutes = aws.Int64(int64(v.(int)))
+	}
+
 	// If the instance is configured with a Network Interface (a subnet, has
 	// public IP, etc), then the instanceOpts.SecurityGroupIds and SubnetId will
 	// be nil
@@ -186,6 +195,7 @@ func resourceAwsSpotInstanceRequestRead(d *schema.ResourceData, meta interface{}
 		}
 	}
 	d.Set("spot_request_state", *request.State)
+	d.Set("block_duration_minutes", *request.BlockDurationMinutes)
 	d.Set("tags", tagsToMap(request.Tags))
 
 	return nil
diff --git a/builtin/providers/aws/resource_aws_spot_instance_request_test.go b/builtin/providers/aws/resource_aws_spot_instance_request_test.go
index d329b7d348..2fe9860a6c 100644
--- a/builtin/providers/aws/resource_aws_spot_instance_request_test.go
+++ b/builtin/providers/aws/resource_aws_spot_instance_request_test.go
@@ -36,6 +36,33 @@ func TestAccAWSSpotInstanceRequest_basic(t *testing.T) {
 	})
 }
 
+func TestAccAWSSpotInstanceRequest_withBlockDuration(t *testing.T) {
+	var sir ec2.SpotInstanceRequest
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckAWSSpotInstanceRequestDestroy,
+		Steps: []resource.TestStep{
+			resource.TestStep{
+				Config: testAccAWSSpotInstanceRequestConfig_withBlockDuration,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAWSSpotInstanceRequestExists(
+						"aws_spot_instance_request.foo", &sir),
+					testAccCheckAWSSpotInstanceRequestAttributes(&sir),
+					testCheckKeyPair("tmp-key", &sir),
+					resource.TestCheckResourceAttr(
+						"aws_spot_instance_request.foo", "spot_bid_status", "fulfilled"),
+					resource.TestCheckResourceAttr(
+						"aws_spot_instance_request.foo", "spot_request_state", "active"),
+					resource.TestCheckResourceAttr(
+						"aws_spot_instance_request.foo", "block_duration_minutes", "60"),
+				),
+			},
+		},
+	})
+}
+
 func TestAccAWSSpotInstanceRequest_vpc(t *testing.T) {
 	var sir ec2.SpotInstanceRequest
 
@@ -271,6 +298,33 @@ resource "aws_spot_instance_request" "foo" {
 }
 `
 
+const testAccAWSSpotInstanceRequestConfig_withBlockDuration = `
+resource "aws_key_pair" "debugging" {
+	key_name = "tmp-key"
+	public_key = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD3F6tyPEFEzV0LX3X8BsXdMsQz1x2cEikKDEY0aIj41qgxMCP/iteneqXSIFZBp5vizPvaoIR3Um9xK7PGoW8giupGn+EPuxIA4cDM4vzOqOkiMPhz5XK0whEjkVzTo4+S0puvDZuwIsdiW9mxhJc7tgBNL0cYlWSYVkz4G/fslNfRPW5mYAM49f4fhtxPb5ok4Q2Lg9dPKVHO/Bgeu5woMc7RY0p1ej6D4CKFE6lymSDJpW0YHX/wqE9+cfEauh7xZcG0q9t2ta6F6fmX0agvpFyZo8aFbXeUBr7osSCJNgvavWbM/06niWrOvYX2xwWdhXmXSrbX8ZbabVohBK41 phodgson@thoughtworks.com"
+}
+
+resource "aws_spot_instance_request" "foo" {
+	ami = "ami-4fccb37f"
+	instance_type = "m1.small"
+	key_name = "${aws_key_pair.debugging.key_name}"
+
+	// base price is $0.044 hourly, so bidding above that should theoretically
+	// always fulfill
+	spot_price = "0.05"
+
+	// we wait for fulfillment because we want to inspect the launched instance
+	// and verify termination behavior
+	wait_for_fulfillment = true
+
+	block_duration_minutes = 60
+
+	tags {
+		Name = "terraform-test"
+	}
+}
+`
+
 const testAccAWSSpotInstanceRequestConfigVPC = `
 resource "aws_vpc" "foo_VPC" {
 	cidr_block = "10.1.0.0/16"
diff --git a/website/source/docs/providers/aws/r/spot_instance_request.html.markdown b/website/source/docs/providers/aws/r/spot_instance_request.html.markdown
index 453d9a18ed..7f8fd9f0f2 100644
--- a/website/source/docs/providers/aws/r/spot_instance_request.html.markdown
+++ b/website/source/docs/providers/aws/r/spot_instance_request.html.markdown
@@ -54,6 +54,9 @@ Spot Instance Requests support all the same arguments as
 * `spot_type` - (Optional; Default: "persistent") If set to "one-time", after
   the instance is terminated, the spot request will be closed. Also, Terraform
   can't manage one-time spot requests, just launch them.
+* `block_duration_minutes` - (Optional) The required duration for the Spot instances, in minutes. This value must be a multiple of 60 (60, 120, 180, 240, 300, or 360).
+  The duration period starts as soon as your Spot instance receives its instance ID. At the end of the duration period, Amazon EC2 marks the Spot instance for termination and provides a Spot instance termination notice, which gives the instance a two-minute warning before it terminates.
+  Note that you can't specify an Availability Zone group or a launch group if you specify a duration.
 
 ## Attributes Reference