diff --git a/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java b/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java
index 3310542..8ea13e5 100644
--- a/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java
+++ b/hyracks-storage-am-common/src/main/java/edu/uci/ics/hyracks/storage/am/common/frames/TreeIndexNSMFrame.java
@@ -216,8 +216,8 @@
     }
 
     protected void resetSpaceParams() {
-        buf.putInt(freeSpaceOff, totalFreeSpaceOff + 4);
-        buf.putInt(totalFreeSpaceOff, buf.capacity() - (totalFreeSpaceOff + 4));
+	buf.putInt(freeSpaceOff, smFlagOff + 1);
+	buf.putInt(totalFreeSpaceOff, buf.capacity() - (smFlagOff + 1));
     }
 
     @Override