diff --git a/apps/assets/automations/gather_facts/host/posix/main.yml b/apps/assets/automations/gather_facts/host/posix/main.yml
index ba86d9a91..0b083c94b 100644
--- a/apps/assets/automations/gather_facts/host/posix/main.yml
+++ b/apps/assets/automations/gather_facts/host/posix/main.yml
@@ -12,7 +12,12 @@
           cpu_cores: "{{ ansible_processor_cores }}"
           cpu_vcpus: "{{ ansible_processor_vcpus }}"
           memory: "{{ ansible_memtotal_mb / 1024 | round(2) }}"
-          disk_total: "{{ (ansible_mounts | map(attribute='size_total') | sum / 1024 / 1024 / 1024) | round(2) }}"
+          disk_total: |-
+            {% set ns = namespace(total=0) %}
+            {%- for name, dev in ansible_devices.items() if dev.removable == '0' and dev.host != ''  -%}
+              {%- set ns.total = ns.total + ( dev.sectors | int * dev.sectorsize | int ) -%}
+            {%- endfor -%}
+            {{- (ns.total / 1024 / 1024 / 1024) | round(2) -}}
           distribution: "{{ ansible_distribution }}"
           distribution_version: "{{ ansible_distribution_version }}"
           arch: "{{ ansible_architecture }}"