diff --git a/tests/common_vars.yml b/tests/common_vars.yml
index bc89406c4..1450a3b6c 100644
--- a/tests/common_vars.yml
+++ b/tests/common_vars.yml
@@ -4,6 +4,8 @@ deploy_netchecker: true
 dns_min_replicas: 1
 unsafe_show_logs: true
 
+bin_dir: "{{ '/opt/bin' if ansible_os_family == 'Flatcar' else '/usr/local/bin' }}"
+
 # Registry mirrors settings
 docker_registry_mirrors:
   - "https://mirror.gcr.io"
diff --git a/tests/testcases/015_check-nodes-ready.yml b/tests/testcases/015_check-nodes-ready.yml
index 536207211..1b196a58f 100644
--- a/tests/testcases/015_check-nodes-ready.yml
+++ b/tests/testcases/015_check-nodes-ready.yml
@@ -1,8 +1,6 @@
 ---
 - name: Testcases checking nodes
   hosts: kube_control_plane[0]
-  vars:
-    bin_dir: /usr/local/bin
   tasks:
 
   - import_role:  # noqa name[missing]
diff --git a/tests/testcases/020_check-pods-running.yml b/tests/testcases/020_check-pods-running.yml
index a573bb1cc..d3f1a4b9f 100644
--- a/tests/testcases/020_check-pods-running.yml
+++ b/tests/testcases/020_check-pods-running.yml
@@ -1,8 +1,6 @@
 ---
 - name: Testcases checking pods
   hosts: kube_control_plane[0]
-  vars:
-    bin_dir: /usr/local/bin
   tasks:
 
   - import_role:  # noqa name[missing]
diff --git a/tests/testcases/030_check-network.yml b/tests/testcases/030_check-network.yml
index e3e5a9b80..4d0ab78b7 100644
--- a/tests/testcases/030_check-network.yml
+++ b/tests/testcases/030_check-network.yml
@@ -6,7 +6,6 @@
     test_image_tag: "2.40"
     # TODO: source those from kubespray_defaults instead.
     # Needs kubespray_defaults to be decoupled from no-proxy stuff
-    bin_dir: "/usr/local/bin"
     kube_pods_subnet: "{{ 'fd85:ee78:d8a6:8607::1:0000/112' if not (ipv4_stack | default(true)) else '10.233.64.0/18' }}"
 
   tasks:
diff --git a/tests/testcases/040_check-network-adv.yml b/tests/testcases/040_check-network-adv.yml
index e036fcba6..9f40e10f5 100644
--- a/tests/testcases/040_check-network-adv.yml
+++ b/tests/testcases/040_check-network-adv.yml
@@ -19,7 +19,6 @@
     agent_report_interval: 10
     netcheck_namespace: default
     netchecker_port: 31081
-    bin_dir: "/usr/local/bin"
 
   tasks:
     - import_role:  # noqa name[missing]