diff --git a/src/gausskernel/storage/page/pageparse.cpp b/src/gausskernel/storage/page/pageparse.cpp
index 6c8d7ae49..17f6d1ad6 100644
--- a/src/gausskernel/storage/page/pageparse.cpp
+++ b/src/gausskernel/storage/page/pageparse.cpp
@@ -629,7 +629,7 @@ char *ParsePage(char *path, int64 blocknum, char *relation_type, bool read_memor
         blockNum = blocknum;
         block_endpoint = blocknum;
     } else { /* blocknum == -1, parse all blocks */
-        block_endpoint = maxBlockNum;
+        block_endpoint = maxBlockNum - 1;
     }
     /* if not declare a single block, then loop all blocks */
     while (blockNum <= block_endpoint) {