diff --git a/inventory/group_vars/buildvm_armv7 b/inventory/group_vars/buildvm_armv7
index e3adb50797..e326826719 100644
--- a/inventory/group_vars/buildvm_armv7
+++ b/inventory/group_vars/buildvm_armv7
@@ -2,7 +2,7 @@
 # common items for the buildvm-aarmv7* koji builders
 volgroup: /dev/vg_guests
 lvm_size: 140000
-mem_size: 40960
+mem_size: 32767
 max_mem_size: "{{ mem_size }}"
 num_cpus: 5
 max_cpu: "{{ num_cpus }}"