diff --git a/extra/mariabackup/fil_cur.cc b/extra/mariabackup/fil_cur.cc
index 2383e3a03a7..4d0e99332a2 100644
--- a/extra/mariabackup/fil_cur.cc
+++ b/extra/mariabackup/fil_cur.cc
@@ -187,6 +187,7 @@ xb_fil_cur_open(
 	}
 #else
 	err = fstat(cursor->file.m_file, &cursor->statinfo);
+	MSAN_STAT_WORKAROUND(&cursor->statinfo);
 #endif
 	if (max_file_size < (ulonglong)cursor->statinfo.st_size) {
 		cursor->statinfo.st_size = (ulonglong)max_file_size;
diff --git a/extra/mariabackup/xtrabackup.cc b/extra/mariabackup/xtrabackup.cc
index d8015a0e331..a59e8f0858f 100644
--- a/extra/mariabackup/xtrabackup.cc
+++ b/extra/mariabackup/xtrabackup.cc
@@ -3648,6 +3648,7 @@ next_file:
 		return(-1);
 	}
 
+	MSAN_STAT_WORKAROUND(&statinfo);
 	info->size = statinfo.st_size;
 
 	if (S_ISDIR(statinfo.st_mode)) {