diff --git a/cmd/controller/controller_test.go b/cmd/controller/controller_test.go
index 0b7b1ccfec74..41b0775e115a 100644
--- a/cmd/controller/controller_test.go
+++ b/cmd/controller/controller_test.go
@@ -52,7 +52,7 @@ Flags:
       --cidr-range string                              HACK: cidr range for the windows worker node \(default "10\.96\.0\.0/12"\)
   -c, --config string                                  config file, use '-' to read the config from stdin \(default ".+k0s\.yaml"\)
       --cri-socket string                              container runtime socket to use, default to internal containerd\. Format: \[remote\|docker\]:\[path-to-socket\]
-      --data-dir string                                Data Directory for k0s \(default: .+k0s\)\. DO NOT CHANGE for an existing setup, things will break!
+      --data-dir string                                Data Directory for k0s\. DO NOT CHANGE for an existing setup, things will break! \(default ".+k0s"\)
   -d, --debug                                          Debug logging \(default: false\)
       --debugListenOn string                           Http listenOn for Debug pprof handler \(default ":6060"\)
       --disable-components strings                     disable components \(valid items: applier-manager,autopilot,control-api,coredns,csr-approver,endpoint-reconciler,helm,konnectivity-server,kube-controller-manager,kube-proxy,kube-scheduler,metrics-server,network-provider,node-role,system-rbac,windows-node,worker-config\)
diff --git a/cmd/install/controller_test.go b/cmd/install/controller_test.go
index a2f22de44ede..60f0875d9ebc 100644
--- a/cmd/install/controller_test.go
+++ b/cmd/install/controller_test.go
@@ -51,7 +51,7 @@ Flags:
       --cidr-range string                              HACK: cidr range for the windows worker node \(default "10\.96\.0\.0/12"\)
   -c, --config string                                  config file, use '-' to read the config from stdin \(default ".+k0s\.yaml"\)
       --cri-socket string                              container runtime socket to use, default to internal containerd\. Format: \[remote\|docker\]:\[path-to-socket\]
-      --data-dir string                                Data Directory for k0s \(default: .+k0s\)\. DO NOT CHANGE for an existing setup, things will break!
+      --data-dir string                                Data Directory for k0s\. DO NOT CHANGE for an existing setup, things will break! \(default ".+k0s"\)
   -d, --debug                                          Debug logging \(default: false\)
       --debugListenOn string                           Http listenOn for Debug pprof handler \(default ":6060"\)
       --disable-components strings                     disable components \(valid items: applier-manager,autopilot,control-api,coredns,csr-approver,endpoint-reconciler,helm,konnectivity-server,kube-controller-manager,kube-proxy,kube-scheduler,metrics-server,network-provider,node-role,system-rbac,windows-node,worker-config\)
diff --git a/pkg/config/cli.go b/pkg/config/cli.go
index 9d565b0a2bf1..d2f8696a87c5 100644
--- a/pkg/config/cli.go
+++ b/pkg/config/cli.go
@@ -34,7 +34,6 @@ import (
 
 var (
 	CfgFile        string
-	DataDir        string
 	Debug          bool
 	DebugListenOn  string
 	StatusSocket   string
@@ -124,7 +123,7 @@ func GetPersistentFlagSet() *pflag.FlagSet {
 	flagset := &pflag.FlagSet{}
 	flagset.BoolVarP(&Debug, "debug", "d", false, "Debug logging (default: false)")
 	flagset.BoolVarP(&Verbose, "verbose", "v", false, "Verbose logging (default: false)")
-	flagset.StringVar(&DataDir, "data-dir", "", "Data Directory for k0s (default: /var/lib/k0s). DO NOT CHANGE for an existing setup, things will break!")
+	flagset.String("data-dir", constant.DataDirDefault, "Data Directory for k0s. DO NOT CHANGE for an existing setup, things will break!")
 	flagset.StringVar(&StatusSocket, "status-socket", "", "Full file path to the socket file. (default: <rundir>/status.sock)")
 	flagset.StringVar(&DebugListenOn, "debugListenOn", ":6060", "Http listenOn for Debug pprof handler")
 	return flagset
@@ -139,7 +138,7 @@ func GetKubeCtlFlagSet() *pflag.FlagSet {
 	}
 
 	flagset := &pflag.FlagSet{}
-	flagset.StringVar(&DataDir, "data-dir", "", "Data Directory for k0s (default: /var/lib/k0s). DO NOT CHANGE for an existing setup, things will break!")
+	flagset.String("data-dir", constant.DataDirDefault, "Data Directory for k0s. DO NOT CHANGE for an existing setup, things will break!")
 	flagset.BoolVar(&Debug, "debug", debugDefault, "Debug logging [$DEBUG]")
 	return flagset
 }