diff --git a/inventory/host_vars/arm02-builder00.arm.fedoraproject.org b/inventory/host_vars/arm02-builder00.arm.fedoraproject.org
new file mode 100644
index 0000000000..0ddade218a
--- /dev/null
+++ b/inventory/host_vars/arm02-builder00.arm.fedoraproject.org
@@ -0,0 +1,7 @@
+---
+#
+# We need to mount koji storage rw here so run_root can work.
+# The rest of the group can be ro, it's only builders in the
+# compose channel that need a rw mount
+
+nfs_mount_opts: "rw,hard,bg,intr,noatime,nodev,nosuid,nfsvers=3"
diff --git a/inventory/host_vars/arm02-builder01.arm.fedoraproject.org b/inventory/host_vars/arm02-builder01.arm.fedoraproject.org
new file mode 100644
index 0000000000..0ddade218a
--- /dev/null
+++ b/inventory/host_vars/arm02-builder01.arm.fedoraproject.org
@@ -0,0 +1,7 @@
+---
+#
+# We need to mount koji storage rw here so run_root can work.
+# The rest of the group can be ro, it's only builders in the
+# compose channel that need a rw mount
+
+nfs_mount_opts: "rw,hard,bg,intr,noatime,nodev,nosuid,nfsvers=3"