diff --git a/tasks/kubelet-setup.yml b/tasks/kubelet-setup.yml
index 939046e..05a4622 100644
--- a/tasks/kubelet-setup.yml
+++ b/tasks/kubelet-setup.yml
@@ -15,7 +15,7 @@
   set_fact:
     kubelet_args_path: '/etc/systemd/system/kubelet.service.d/10-kubeadm.conf'
     kubelet_args_line: "{{ 'Environment=\"KUBELET_EXTRA_ARGS=' + kubernetes_kubelet_extra_args + '\"' }}"
-    kubelet_args_regexp: '^Environment='
+    kubelet_args_regexp: '^Environment="KUBELET_EXTRA_ARGS='
   when: not kubelet_environment_file.stat.exists
 
 - name: Configure KUBELET_EXTRA_ARGS.