diff --git a/src/main/kotlin/net/bytedance/security/app/RuleData.kt b/src/main/kotlin/net/bytedance/security/app/RuleData.kt
index f12115d..b78773b 100644
--- a/src/main/kotlin/net/bytedance/security/app/RuleData.kt
+++ b/src/main/kotlin/net/bytedance/security/app/RuleData.kt
@@ -91,7 +91,8 @@ data class RuleData(
     val printCG: Boolean? = null,
     val IntentSerialTaintsAll: Boolean? = null,
 
-    val sanitize: Map<String, LinkedHashMap<String, JsonElement>>? = null,
+    var sanitizer: Map<String, LinkedHashMap<String, JsonElement>>? = null, // new rules
+    var sanitize: Map<String, LinkedHashMap<String, JsonElement>>? = null,  // old rules
 
     val ManifestCheckMode: Boolean? = null,
     val APIMode: Boolean? = null,
diff --git a/src/main/kotlin/net/bytedance/security/app/rules/Rules.kt b/src/main/kotlin/net/bytedance/security/app/rules/Rules.kt
index 24941a7..09dee56 100644
--- a/src/main/kotlin/net/bytedance/security/app/rules/Rules.kt
+++ b/src/main/kotlin/net/bytedance/security/app/rules/Rules.kt
@@ -36,6 +36,10 @@ class Rules(val rulePaths: List<String>, val factory: IRuleFactory) : IRulesForC
             val rules = Json.parseToJsonElement(jsonStr)
             for ((ruleName, ruleBody) in rules.jsonObject) {
                 val ruleData: RuleData = Json.decodeFromJsonElement(ruleBody)
+                if (ruleData.sanitizer != null) {   // Compatible with old and new rules
+                    ruleData.sanitize = ruleData.sanitizer
+                    ruleData.sanitizer = null
+                }
                 val rule = factory.create(ruleName, ruleData)
                 allRules.add(rule)
             }