diff --git a/lib/convection/model/template/resource/aws_ec2_customer_gateway.rb b/lib/convection/model/template/resource/aws_ec2_customer_gateway.rb
index 823b137..da17e89 100644
--- a/lib/convection/model/template/resource/aws_ec2_customer_gateway.rb
+++ b/lib/convection/model/template/resource/aws_ec2_customer_gateway.rb
@@ -11,7 +11,7 @@ class EC2CustomerGateway < Resource
           include Model::Mixin::Taggable
 
           type 'AWS::EC2::CustomerGateway'
-          property :conn_type, 'Type'
+          property :connection_type, 'Type'
           property :bgp_asn, 'BgpAsn'
           property :ip_address, 'IpAddress'
 
diff --git a/lib/convection/model/template/resource/aws_ec2_vpn_connection.rb b/lib/convection/model/template/resource/aws_ec2_vpn_connection.rb
index d2b3bf5..9966532 100644
--- a/lib/convection/model/template/resource/aws_ec2_vpn_connection.rb
+++ b/lib/convection/model/template/resource/aws_ec2_vpn_connection.rb
@@ -11,7 +11,7 @@ class EC2VPNConnection < Resource
           include Model::Mixin::Taggable
 
           type 'AWS::EC2::VPNConnection'
-          property :conn_type, 'Type'
+          property :connection_type, 'Type'
           property :static_routes_only, 'StaticRoutesOnly'
           property :customer_gateway_id, 'CustomerGatewayId'
           property :vpn_gateway_id, 'VpnGatewayId'
diff --git a/lib/convection/model/template/resource/aws_ec2_vpn_gateway.rb b/lib/convection/model/template/resource/aws_ec2_vpn_gateway.rb
index 0c8e0c4..ef1e403 100644
--- a/lib/convection/model/template/resource/aws_ec2_vpn_gateway.rb
+++ b/lib/convection/model/template/resource/aws_ec2_vpn_gateway.rb
@@ -11,7 +11,7 @@ class EC2VPNGateway < Resource
           include Model::Mixin::Taggable
 
           type 'AWS::EC2::VPNGateway'
-          property :conn_type, 'Type'
+          property :connection_type, 'Type'
 
           def render(*args)
             super.tap do |resource|