diff --git a/gradle.properties b/gradle.properties
index 3863306b..4a7ca11d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ org.gradle.console.encoding=UTF-8
 org.gradle.logging.level=quiet
 #Information
 group=io.github.saukiya
-version=4.4.0
+version=4.4.1
 shapshot=false
 languages=zh,en,de
 
diff --git a/src/main/java/github/saukiya/sxitem/data/expression/ExpressionHandler.java b/src/main/java/github/saukiya/sxitem/data/expression/ExpressionHandler.java
index 2e09a4f4..860430f8 100644
--- a/src/main/java/github/saukiya/sxitem/data/expression/ExpressionHandler.java
+++ b/src/main/java/github/saukiya/sxitem/data/expression/ExpressionHandler.java
@@ -230,6 +230,6 @@ public String lookup(String str) {
             }
             SXItem.getInst().getLogger().warning("No Random Type: " + str.substring(0, index));
         }
-        return str;
+        return null;
     }
 }