diff --git a/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java b/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java
index c42e99e8b..802751f1a 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java
@@ -161,6 +161,7 @@ public final class SNBTReader extends DefaultStringReader {
         if (tokenLength > 1) {
             // 至少有1个字符，给了后缀的可能性
             char lastChar = charAt(tokenStart + tokenLength - 1);
+            if (lastChar < 'a') lastChar = (char) (lastChar + 32); // 强制转小写进行匹配.
             try {
                 switch (lastChar) {
                     case BYTE_SUFFIX -> {