diff --git a/defaults/main.yml b/defaults/main.yml
index 56f713a..1c18c96 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -37,7 +37,6 @@ log2ram_ram_percent: 10
 
 log2ram_min_size_mb: 128
 log2ram_max_size_mb: 1024
-log2ram_host_memtotal_mb: "{{ host_memtotal_mb | default(4086) }}"
 
 # Journald RAM usage limit
 journald_runtime_max_use: "100M"
diff --git a/tasks/ram.yml b/tasks/ram.yml
index f8f8937..98f113e 100644
--- a/tasks/ram.yml
+++ b/tasks/ram.yml
@@ -6,8 +6,8 @@
 
 - name: ram | Calculate log2ram size
   ansible.builtin.set_fact:
-    _total_ram_mb: "{{ log2ram_host_memtotal_mb }}"
-    _calculated_size_mb: "{{ (log2ram_host_memtotal_mb * log2ram_ram_percent / 100) | int }}"
+    _total_ram_mb: "{{ ansible_memtotal_mb }}"
+    _calculated_size_mb: "{{ (_total_ram_mb * log2ram_ram_percent / 100) | int }}"
     log2ram_size_mb: >-
       {{
         [log2ram_min_size_mb,