diff --git a/source/libs/stream/src/streamSnapshot.c b/source/libs/stream/src/streamSnapshot.c
index 103fd9e087..5893bc14f1 100644
--- a/source/libs/stream/src/streamSnapshot.c
+++ b/source/libs/stream/src/streamSnapshot.c
@@ -195,7 +195,7 @@ int32_t streamSnapHandleInit(SStreamSnapHandle* pHandle, char* path, int64_t chk
     }
   }
   if (qDebugFlag & DEBUG_TRACE) {
-    char* buf = taosMemoryCalloc(1, 128 + taosArrayGetSize(pFile->pSst) * 16);
+    char* buf = taosMemoryCalloc(1, 128 + taosArrayGetSize(pFile->pSst) * 64);
     sprintf(buf, "[current: %s,", pFile->pCurrent);
     sprintf(buf + strlen(buf), "MANIFEST: %s,", pFile->pMainfest);
     sprintf(buf + strlen(buf), "options: %s,", pFile->pOptions);
@@ -483,7 +483,7 @@ int32_t streamSnapWrite(SStreamSnapWriter* pWriter, uint8_t* pData, uint32_t nDa
 int32_t streamSnapWriterClose(SStreamSnapWriter* pWriter, int8_t rollback) {
   SStreamSnapHandle* handle = &pWriter->handle;
   if (qDebugFlag & DEBUG_TRACE) {
-    char* buf = (char*)taosMemoryMalloc(128 + taosArrayGetSize(handle->pFileList) * 16);
+    char* buf = (char*)taosMemoryMalloc(128 + taosArrayGetSize(handle->pFileList) * 64);
     int   n = sprintf(buf, "[");
     for (int i = 0; i < taosArrayGetSize(handle->pFileList); i++) {
       SBackendFileItem* item = taosArrayGet(handle->pFileList, i);