diff --git a/terraform/test-fixtures/plan-module-wrong-var-type/inner/main.tf b/terraform/test-fixtures/plan-module-wrong-var-type/inner/main.tf
index 8a9f380c7..c7f975a3b 100644
--- a/terraform/test-fixtures/plan-module-wrong-var-type/inner/main.tf
+++ b/terraform/test-fixtures/plan-module-wrong-var-type/inner/main.tf
@@ -5,3 +5,6 @@ variable "map_in" {
         us-west-2 = "ami-67890"
     }
 }
+
+// We have to reference it so it isn't pruned
+output "output" { value = "${var.map_in}" }