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-rw-r--r--src/backend/storage/file/buffile.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c
index 6449f82a72b..a4541b87b8f 100644
--- a/src/backend/storage/file/buffile.c
+++ b/src/backend/storage/file/buffile.c
@@ -459,7 +459,7 @@ BufFileLoadBuffer(BufFile *file)
*/
file->nbytes = FileRead(thisfile,
file->buffer.data,
- sizeof(file->buffer),
+ sizeof(file->buffer.data),
file->curOffset,
WAIT_EVENT_BUFFILE_READ);
if (file->nbytes < 0)