diff --git a/aws/dx_vif.go b/aws/dx_vif.go
index 0898583598cf..92ee5358cc73 100644
--- a/aws/dx_vif.go
+++ b/aws/dx_vif.go
@@ -10,68 +10,8 @@ import (
 	"github.com/aws/aws-sdk-go/service/directconnect"
 	"github.com/hashicorp/terraform/helper/resource"
 	"github.com/hashicorp/terraform/helper/schema"
-	"github.com/hashicorp/terraform/helper/validation"
 )
 
-// Schemas common to all (public/private, hosted or not) virtual interfaces.
-var dxVirtualInterfaceSchemaWithTags = mergeSchemas(
-	dxVirtualInterfaceSchema,
-	map[string]*schema.Schema{
-		"tags": tagsSchema(),
-	},
-)
-var dxVirtualInterfaceSchema = map[string]*schema.Schema{
-	"arn": {
-		Type:     schema.TypeString,
-		Computed: true,
-	},
-	"connection_id": {
-		Type:     schema.TypeString,
-		Required: true,
-		ForceNew: true,
-	},
-	"name": {
-		Type:     schema.TypeString,
-		Required: true,
-		ForceNew: true,
-	},
-	"vlan": {
-		Type:         schema.TypeInt,
-		Required:     true,
-		ForceNew:     true,
-		ValidateFunc: validation.IntBetween(1, 4094),
-	},
-	"bgp_asn": {
-		Type:     schema.TypeInt,
-		Required: true,
-		ForceNew: true,
-	},
-	"bgp_auth_key": {
-		Type:     schema.TypeString,
-		Optional: true,
-		Computed: true,
-		ForceNew: true,
-	},
-	"address_family": {
-		Type:         schema.TypeString,
-		Required:     true,
-		ForceNew:     true,
-		ValidateFunc: validation.StringInSlice([]string{directconnect.AddressFamilyIpv4, directconnect.AddressFamilyIpv6}, false),
-	},
-	"customer_address": {
-		Type:     schema.TypeString,
-		Optional: true,
-		Computed: true,
-		ForceNew: true,
-	},
-	"amazon_address": {
-		Type:     schema.TypeString,
-		Optional: true,
-		Computed: true,
-		ForceNew: true,
-	},
-}
-
 func dxVirtualInterfaceRead(id string, conn *directconnect.DirectConnect) (*directconnect.VirtualInterface, error) {
 	resp, state, err := dxVirtualInterfaceStateRefresh(conn, id)()
 	if err != nil {
diff --git a/aws/resource_aws_dx_public_virtual_interface.go b/aws/resource_aws_dx_public_virtual_interface.go
index d23a2a92978a..88cfd30a5c1c 100644
--- a/aws/resource_aws_dx_public_virtual_interface.go
+++ b/aws/resource_aws_dx_public_virtual_interface.go
@@ -8,6 +8,7 @@ import (
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/service/directconnect"
 	"github.com/hashicorp/terraform/helper/schema"
+	"github.com/hashicorp/terraform/helper/validation"
 )
 
 func resourceAwsDxPublicVirtualInterface() *schema.Resource {
@@ -21,18 +22,65 @@ func resourceAwsDxPublicVirtualInterface() *schema.Resource {
 		},
 		CustomizeDiff: resourceAwsDxPublicVirtualInterfaceCustomizeDiff,
 
-		Schema: mergeSchemas(
-			dxVirtualInterfaceSchemaWithTags,
-			map[string]*schema.Schema{
-				"route_filter_prefixes": &schema.Schema{
-					Type:     schema.TypeSet,
-					Required: true,
-					ForceNew: true,
-					Elem:     &schema.Schema{Type: schema.TypeString},
-					MinItems: 1,
-				},
+		Schema: map[string]*schema.Schema{
+			"arn": {
+				Type:     schema.TypeString,
+				Computed: true,
 			},
-		),
+			"connection_id": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"name": {
+				Type:     schema.TypeString,
+				Required: true,
+				ForceNew: true,
+			},
+			"vlan": {
+				Type:         schema.TypeInt,
+				Required:     true,
+				ForceNew:     true,
+				ValidateFunc: validation.IntBetween(1, 4094),
+			},
+			"bgp_asn": {
+				Type:     schema.TypeInt,
+				Required: true,
+				ForceNew: true,
+			},
+			"bgp_auth_key": {
+				Type:     schema.TypeString,
+				Optional: true,
+				Computed: true,
+				ForceNew: true,
+			},
+			"address_family": {
+				Type:         schema.TypeString,
+				Required:     true,
+				ForceNew:     true,
+				ValidateFunc: validation.StringInSlice([]string{directconnect.AddressFamilyIpv4, directconnect.AddressFamilyIpv6}, false),
+			},
+			"customer_address": {
+				Type:     schema.TypeString,
+				Optional: true,
+				Computed: true,
+				ForceNew: true,
+			},
+			"amazon_address": {
+				Type:     schema.TypeString,
+				Optional: true,
+				Computed: true,
+				ForceNew: true,
+			},
+			"route_filter_prefixes": &schema.Schema{
+				Type:     schema.TypeSet,
+				Required: true,
+				ForceNew: true,
+				Elem:     &schema.Schema{Type: schema.TypeString},
+				MinItems: 1,
+			},
+			"tags": tagsSchema(),
+		},
 
 		Timeouts: &schema.ResourceTimeout{
 			Create: schema.DefaultTimeout(10 * time.Minute),
diff --git a/aws/utils.go b/aws/utils.go
index 6a120cccff8c..21c3aab7ef3d 100644
--- a/aws/utils.go
+++ b/aws/utils.go
@@ -7,7 +7,6 @@ import (
 	"regexp"
 
 	"github.com/hashicorp/terraform/helper/resource"
-	"github.com/hashicorp/terraform/helper/schema"
 )
 
 // Base64Encode encodes data if the input isn't already encoded using base64.StdEncoding.EncodeToString.
@@ -48,15 +47,3 @@ func isResourceNotFoundError(err error) bool {
 	_, ok := err.(*resource.NotFoundError)
 	return ok
 }
-
-func mergeSchemas(schemas ...map[string]*schema.Schema) map[string]*schema.Schema {
-	merged := make(map[string]*schema.Schema)
-
-	for _, schema := range schemas {
-		for k, v := range schema {
-			merged[k] = v
-		}
-	}
-
-	return merged
-}
diff --git a/aws/utils_test.go b/aws/utils_test.go
index a5854e7ef4b0..785ad141ed33 100644
--- a/aws/utils_test.go
+++ b/aws/utils_test.go
@@ -2,8 +2,6 @@ package aws
 
 import (
 	"testing"
-
-	"github.com/hashicorp/terraform/helper/schema"
 )
 
 var base64encodingTests = []struct {
@@ -74,29 +72,3 @@ func TestJsonBytesEqualWhitespaceAndNoWhitespace(t *testing.T) {
 		t.Errorf("Expected jsonBytesEqual to return false for %s == %s", noWhitespaceDiff, whitespaceDiff)
 	}
 }
-
-func TestMergeSchemas(t *testing.T) {
-	s1 := map[string]*schema.Schema{
-		"aaa": {
-			Type:     schema.TypeString,
-			Required: true,
-			ForceNew: true,
-		},
-		"zzz": {
-			Type:     schema.TypeInt,
-			Optional: true,
-			Default:  42,
-		},
-	}
-	s2 := map[string]*schema.Schema{
-		"xxx": {
-			Type:     schema.TypeFloat,
-			Computed: true,
-		},
-	}
-
-	s3 := mergeSchemas(s1, s2)
-	if len(s3) != 3 {
-		t.Errorf("Expected merge schema to be of size 3, got %d", len(s3))
-	}
-}