diff --git a/source/libs/function/src/tpercentile.c b/source/libs/function/src/tpercentile.c
index 27d029aaa5afff77c633bc48abbdce7aa485c079..157ee08f1522118e0ab12daa5426c1f44c00adda 100644
--- a/source/libs/function/src/tpercentile.c
+++ b/source/libs/function/src/tpercentile.c
@@ -364,6 +364,7 @@ int32_t tMemBucketPut(tMemBucket *pBucket, const void *data, size_t size) {
         assert(pSlot->info.data->num >= pBucket->elemPerPage && pSlot->info.size > 0);
 
         // keep the pointer in memory
+        setBufPageDirty(pSlot->info.data, true);
         releaseBufPage(pBucket->pBuffer, pSlot->info.data);
         pSlot->info.data = NULL;
       }
@@ -505,6 +506,7 @@ double getPercentileImpl(tMemBucket *pMemBucket, int32_t count, double fraction)
           SFilePage *pg = getBufPage(pMemBucket->pBuffer, *pageId);
 
           tMemBucketPut(pMemBucket, pg->data, (int32_t)pg->num);
+          setBufPageDirty(pg, true);
           releaseBufPage(pMemBucket->pBuffer, pg);
         }