diff --git a/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd.go b/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd.go
index c6e15aca0a0b..aa1345cae26d 100644
--- a/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd.go
+++ b/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd.go
@@ -56,7 +56,7 @@ func (a *runCmd) Commands() ([]provisioning.Cmd, error) {
 }
 
 // ignorePreflightErrors are preflight errors that fail in CAPD and thus we have to ignore them.
-const ignorePreflightErrors = "SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables"
+const ignorePreflightErrors = "SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables,FileContent--proc-sys-net-bridge-bridge-nf-call-ip6tables"
 
 func hackKubeadmIgnoreErrors(c provisioning.Cmd) provisioning.Cmd {
 	// case kubeadm commands are defined as a string
diff --git a/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd_test.go b/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd_test.go
index 3050b9ec51d8..ccf76750c80e 100644
--- a/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd_test.go
+++ b/test/infrastructure/docker/internal/provisioning/cloudinit/runcmd_test.go
@@ -71,7 +71,7 @@ func TestRunCmdRun(t *testing.T) {
 				},
 			},
 			expectedCmds: []provisioning.Cmd{
-				{Cmd: "/bin/sh", Args: []string{"-c", "kubeadm init --ignore-preflight-errors=SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables --config /run/kubeadm/kubeadm.yaml"}},
+				{Cmd: "/bin/sh", Args: []string{"-c", "kubeadm init --ignore-preflight-errors=SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables,FileContent--proc-sys-net-bridge-bridge-nf-call-ip6tables --config /run/kubeadm/kubeadm.yaml"}},
 			},
 		},
 	}
@@ -101,11 +101,11 @@ runcmd:
 
 	r.Cmds[0] = hackKubeadmIgnoreErrors(r.Cmds[0])
 
-	expected0 := provisioning.Cmd{Cmd: "/bin/sh", Args: []string{"-c", "kubeadm init --ignore-preflight-errors=SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables --config=/run/kubeadm/kubeadm.yaml"}}
+	expected0 := provisioning.Cmd{Cmd: "/bin/sh", Args: []string{"-c", "kubeadm init --ignore-preflight-errors=SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables,FileContent--proc-sys-net-bridge-bridge-nf-call-ip6tables --config=/run/kubeadm/kubeadm.yaml"}}
 	g.Expect(r.Cmds[0]).To(Equal(expected0))
 
 	r.Cmds[1] = hackKubeadmIgnoreErrors(r.Cmds[1])
 
-	expected1 := provisioning.Cmd{Cmd: "kubeadm", Args: []string{"join", "--ignore-preflight-errors=SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables", "--config=/run/kubeadm/kubeadm-controlplane-join-config.yaml"}}
+	expected1 := provisioning.Cmd{Cmd: "kubeadm", Args: []string{"join", "--ignore-preflight-errors=SystemVerification,Swap,FileContent--proc-sys-net-bridge-bridge-nf-call-iptables,FileContent--proc-sys-net-bridge-bridge-nf-call-ip6tables", "--config=/run/kubeadm/kubeadm-controlplane-join-config.yaml"}}
 	g.Expect(r.Cmds[1]).To(Equal(expected1))
 }