diff --git a/src/main/java/top/guoziyang/mydb/backend/dm/DataManagerImpl.java b/src/main/java/top/guoziyang/mydb/backend/dm/DataManagerImpl.java
index 6ff4509..ab6b729 100644
--- a/src/main/java/top/guoziyang/mydb/backend/dm/DataManagerImpl.java
+++ b/src/main/java/top/guoziyang/mydb/backend/dm/DataManagerImpl.java
@@ -65,6 +65,7 @@ public long insert(long xid, byte[] data) throws Exception {
         Page pg = null;
         int freeSpace = 0;
         try {
+            freeSpace = pi.freeSpace;
             pg = pc.getPage(pi.pgno);
             byte[] log = Recover.insertLog(xid, pg, raw);
             logger.log(log);