diff --git a/src/main/scala/xiangshan/Parameters.scala b/src/main/scala/xiangshan/Parameters.scala
index 129994701c..50c5a66b40 100644
--- a/src/main/scala/xiangshan/Parameters.scala
+++ b/src/main/scala/xiangshan/Parameters.scala
@@ -543,7 +543,7 @@ case class XSCoreParameters
   val traceParams: TraceParams = new TraceParams(
     HasEncoder     = true,
     TraceEnable    = true,
-    TraceGroupNum  = 3,
+    TraceGroupNum  = 2,
     IaddrWidth     = GPAddrBitsSv48x4,
     PrivWidth      = 3,
     ItypeWidth     = 4,