diff --git a/upup/pkg/fi/cloudup/awstasks/vpc.go b/upup/pkg/fi/cloudup/awstasks/vpc.go
index 25a448520e..4317c4d14f 100644
--- a/upup/pkg/fi/cloudup/awstasks/vpc.go
+++ b/upup/pkg/fi/cloudup/awstasks/vpc.go
@@ -216,6 +216,10 @@ func (_ *VPC) RenderTerraform(t *terraform.TerraformTarget, a, e, changes *VPC)
 		return err
 	}
 
+	if err := t.AddOutputVariable("vpc_cidr_block", terraform.LiteralProperty("aws_vpc", *e.Name, "cidr_block")); err != nil {
+		return err
+	}
+
 	shared := fi.BoolValue(e.Shared)
 	if shared {
 		// Not terraform owned / managed