diff --git a/aws-go-webserver/main.go b/aws-go-webserver/main.go
index 8015452a7..d9173fa59 100644
--- a/aws-go-webserver/main.go
+++ b/aws-go-webserver/main.go
@@ -40,7 +40,7 @@ func main() {
 
 		// Create a simple web server using the startup script for the instance.
 		srv, err := ec2.NewInstance(ctx, "web-server-www", &ec2.InstanceArgs{
-			Tags:                pulumi.Map{"Name": pulumi.String("web-server-www")},
+			Tags:                pulumi.MapString{"Name": pulumi.String("web-server-www")},
 			InstanceType:        pulumi.String("t2.micro"), // t2.micro is available in the AWS free tier.
 			VpcSecurityGroupIds: pulumi.StringArray{group.ID()},
 			Ami:                 pulumi.String(ami.Id),