From cfe1a9e729c79eec4fed379d93768a20b70d3bb9 Mon Sep 17 00:00:00 2001
From: gnembon <gnembonmc@gmail.com>
Date: Mon, 4 May 2020 23:09:02 -0300
Subject: [PATCH] fix

---
 src/main/java/carpet/script/CarpetExpression.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/carpet/script/CarpetExpression.java b/src/main/java/carpet/script/CarpetExpression.java
index 0b0bd068..a2f8154a 100644
--- a/src/main/java/carpet/script/CarpetExpression.java
+++ b/src/main/java/carpet/script/CarpetExpression.java
@@ -1164,7 +1164,8 @@ public class CarpetExpression
                     String reqString = requested.getString();
                     String structureName = FeatureGenerator.featureToStructure.get(reqString);
                     if (structureName == null) throw new InternalExpressionException("Unknown structure: " + reqString);
-                    structure = Feature.STRUCTURES.get(structureName);
+                    structure = Feature.STRUCTURES.get(structureName.toLowerCase(Locale.ROOT));
+                    if (structure == null) throw new InternalExpressionException("Unsupported structure: " + structureName);
                 }
                 if (lv.size() > locator.offset+1)
                 {