diff --git a/fs/udf/super.c b/fs/udf/super.c
index 81155b9b445b..ee09c97f3ab2 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -705,7 +705,7 @@ static loff_t udf_check_vsd(struct super_block *sb)
 	else
 		sectorsize = sb->s_blocksize;
 
-	sector += (sbi->s_session << sb->s_blocksize_bits);
+	sector += (((loff_t)sbi->s_session) << sb->s_blocksize_bits);
 
 	udf_debug("Starting at sector %u (%ld byte sectors)\n",
 		  (unsigned int)(sector >> sb->s_blocksize_bits),