diff --git a/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/memory/FileMapInfo.java b/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/memory/FileMapInfo.java
index f8500276779..9d5c0dec9fb 100644
--- a/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/memory/FileMapInfo.java
+++ b/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/memory/FileMapInfo.java
@@ -126,7 +126,7 @@ public class FileMapInfo {
     metadataTypeArray[4] = db.lookupType("InstanceRefKlass");
     metadataTypeArray[5] = db.lookupType("InstanceStackChunkKlass");
     metadataTypeArray[6] = db.lookupType("Method");
-    metadataTypeArray[9] = db.lookupType("MethodData");
+    metadataTypeArray[7] = db.lookupType("MethodData");
     metadataTypeArray[8] = db.lookupType("MethodCounters");
     metadataTypeArray[9] = db.lookupType("ObjArrayKlass");
     metadataTypeArray[10] = db.lookupType("TypeArrayKlass");