diff --git a/cmd/get/getCluster.go b/cmd/get/getCluster.go
index fb298e57..0249c1bd 100644
--- a/cmd/get/getCluster.go
+++ b/cmd/get/getCluster.go
@@ -27,6 +27,7 @@ import (
 	"os"
 	"strings"
 
+	"github.com/rancher/k3d/cmd/util"
 	k3cluster "github.com/rancher/k3d/pkg/cluster"
 	"github.com/rancher/k3d/pkg/runtimes"
 	k3d "github.com/rancher/k3d/pkg/types"
@@ -58,7 +59,7 @@ func NewCmdGetCluster() *cobra.Command {
 			clusters := buildClusterList(cmd.Context(), args)
 			PrintClusters(clusters, clusterFlags)
 		},
-		ValidArgsFunction: validArgsFunc,
+		ValidArgsFunction: util.ValidArgsAvailableClusters,
 	}
 
 	// add flags
@@ -71,31 +72,6 @@ func NewCmdGetCluster() *cobra.Command {
 	return cmd
 }
 
-// validArgsFunc is used for shell completion: proposes the list of existing clusters
-func validArgsFunc(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
-
-	var completions []string
-	var clusters []*k3d.Cluster
-	clusters, err := k3cluster.GetClusters(context.Background(), runtimes.SelectedRuntime)
-	if err != nil {
-		log.Errorln("Failed to get list of clusters for shell completion")
-		return nil, cobra.ShellCompDirectiveError
-	}
-
-clusterLoop:
-	for _, cluster := range clusters {
-		for _, arg := range args {
-			if arg == cluster.Name { // only clusters, that are not in the args yet
-				continue clusterLoop
-			}
-		}
-		if strings.HasPrefix(cluster.Name, toComplete) {
-			completions = append(completions, cluster.Name)
-		}
-	}
-	return completions, cobra.ShellCompDirectiveDefault
-}
-
 func buildClusterList(ctx context.Context, args []string) []*k3d.Cluster {
 	var clusters []*k3d.Cluster
 	var err error
diff --git a/cmd/util/completion.go b/cmd/util/completion.go
new file mode 100644
index 00000000..aa0b7e67
--- /dev/null
+++ b/cmd/util/completion.go
@@ -0,0 +1,58 @@
+/*
+Copyright © 2020 The k3d Author(s)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+package util
+
+import (
+	"context"
+	"strings"
+
+	k3dcluster "github.com/rancher/k3d/pkg/cluster"
+	"github.com/rancher/k3d/pkg/runtimes"
+	k3d "github.com/rancher/k3d/pkg/types"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+// ValidArgsAvailableClusters is used for shell completion: proposes the list of existing clusters
+func ValidArgsAvailableClusters(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+
+	var completions []string
+	var clusters []*k3d.Cluster
+	clusters, err := k3dcluster.GetClusters(context.Background(), runtimes.SelectedRuntime)
+	if err != nil {
+		log.Errorln("Failed to get list of clusters for shell completion")
+		return nil, cobra.ShellCompDirectiveError
+	}
+
+clusterLoop:
+	for _, cluster := range clusters {
+		for _, arg := range args {
+			if arg == cluster.Name { // only clusters, that are not in the args yet
+				continue clusterLoop
+			}
+		}
+		if strings.HasPrefix(cluster.Name, toComplete) {
+			completions = append(completions, cluster.Name)
+		}
+	}
+	return completions, cobra.ShellCompDirectiveDefault
+}