diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a3739e7df4114afe5d43389f4d6b348c2245645e..fb5d3277525ea7d5d262b0774664e8d0296593f8 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -6742,14 +6742,6 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
     if (!(def = virDomainDiskDefNew(xmlopt)))
         return NULL;
 
-    def->geometry.cylinders = 0;
-    def->geometry.heads = 0;
-    def->geometry.sectors = 0;
-    def->geometry.trans = VIR_DOMAIN_DISK_TRANS_DEFAULT;
-
-    def->blockio.logical_block_size = 0;
-    def->blockio.physical_block_size = 0;
-
     ctxt->node = node;
 
     type = virXMLPropString(node, "type");