diff --git a/debugtools/DDR_VM/src/com/ibm/j9ddr/AuxFieldInfo29.dat b/debugtools/DDR_VM/src/com/ibm/j9ddr/AuxFieldInfo29.dat
index 1e15c4dd0e2..0cba9010659 100644
--- a/debugtools/DDR_VM/src/com/ibm/j9ddr/AuxFieldInfo29.dat
+++ b/debugtools/DDR_VM/src/com/ibm/j9ddr/AuxFieldInfo29.dat
@@ -214,6 +214,7 @@ J9JITFrame.returnPC = required
 J9JITHashTable.buckets = required
 J9JITHashTable.end = required
 J9JITHashTable.start = required
+J9JITGPRSpillArea.unused = void*
 J9JITStackAtlas.internalPointerMap = required
 J9JITStackAtlas.localBaseOffset = required
 J9JITStackAtlas.numberOfMapBytes = required