diff --git a/templates.fif.json b/templates.fif.json
index c9535e24..24e0e0be 100644
--- a/templates.fif.json
+++ b/templates.fif.json
@@ -860,6 +860,7 @@
             "settings": {
                 "PARTITIONING": "custom_blivet_resize_lvm",
                 "HDD_1": "disk_%FLAVOR%_%MACHINE%.qcow2",
+                "HDDSIZEGB": "17",
                 "INSTALL": "1",
                 "POSTINSTALL": "disk_custom_resize_lvm_postinstall",
                 "ROOT_PASSWORD": "weakpassword",
@@ -875,6 +876,7 @@
             "settings": {
                 "PARTITIONING": "custom_resize_lvm",
                 "HDD_1": "disk_%FLAVOR%_%MACHINE%.qcow2",
+                "HDDSIZEGB": "17",
                 "INSTALL": "1",
                 "ROOT_PASSWORD": "weakpassword",
                 "START_AFTER_TEST": "install_lvm_ext4"