diff --git a/definition/src/main/java/org/sinytra/adapter/patch/analysis/params/LayeredParamsDiffSnapshot.java b/definition/src/main/java/org/sinytra/adapter/patch/analysis/params/LayeredParamsDiffSnapshot.java
index 07d2d4d..f849f58 100644
--- a/definition/src/main/java/org/sinytra/adapter/patch/analysis/params/LayeredParamsDiffSnapshot.java
+++ b/definition/src/main/java/org/sinytra/adapter/patch/analysis/params/LayeredParamsDiffSnapshot.java
@@ -44,7 +44,7 @@ public ParameterTransformer asParameterTransformer() {
     record ReplaceParam(int index, Type type) implements ParamModification {
         @Override
         public ParamModification offset(int offset) {
-            return new InsertParam(this.index + offset, this.type);
+            return new ReplaceParam(this.index + offset, this.type);
         }
 
         @Override