diff --git a/roles/kubernetes/preinstall/tasks/0080-system-configurations.yml b/roles/kubernetes/preinstall/tasks/0080-system-configurations.yml
index dafa47f79f4e1951b09d009cb2e7277c71fd9eb3..91a254290a03b14ed4be4cbb30faf01c09cba2bd 100644
--- a/roles/kubernetes/preinstall/tasks/0080-system-configurations.yml
+++ b/roles/kubernetes/preinstall/tasks/0080-system-configurations.yml
@@ -82,7 +82,7 @@
   sysctl:
     sysctl_file: "{{ sysctl_file_path }}"
     name: net.ipv6.conf.all.forwarding
-    value: 1
+    value: "1"
     state: present
     reload: yes
   when: enable_dual_stack_networks | bool