diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 50565d3a4433..e73343469121 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -175,7 +175,7 @@ int __exfat_truncate(struct inode *inode, loff_t new_size)
 			ep2->dentry.stream.size = 0;
 		} else {
 			ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
-			ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+			ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
 		}
 
 		if (new_size == 0) {