diff --git a/playground/Demo4/Main.snow b/playground/Demo4/Main.snow
index 4dc5351..1641146 100644
--- a/playground/Demo4/Main.snow
+++ b/playground/Demo4/Main.snow
@@ -3,7 +3,7 @@ module: Main
         parameter:
         return_type: int
         body:
-           declare b1: bool
+           declare b1: boolean
 
         return 0
         end body
diff --git a/src/main/java/org/jcnc/snow/compiler/lexer/token/TokenFactory.java b/src/main/java/org/jcnc/snow/compiler/lexer/token/TokenFactory.java
index 6a01378..98155f6 100644
--- a/src/main/java/org/jcnc/snow/compiler/lexer/token/TokenFactory.java
+++ b/src/main/java/org/jcnc/snow/compiler/lexer/token/TokenFactory.java
@@ -33,7 +33,7 @@ public class TokenFactory {
     /**
      * 内置类型名称集合，如 int、string 等。
      */
-    private static final Set<String> TYPES = Set.of("int", "string", "float", "bool", "void", "double", "long", "short", "byte");
+    private static final Set<String> TYPES = Set.of("int", "string", "float", "boolean", "void", "double", "long", "short", "byte");
 
     /**
      * 创建一个根据内容自动推断类型的 {@link Token} 实例。