diff --git a/cli/app/app.go b/cli/app/app.go
index 1635e455..97744d60 100644
--- a/cli/app/app.go
+++ b/cli/app/app.go
@@ -53,7 +53,10 @@ import (
 	"github.com/ghodss/yaml"
 )
 
-const letterBytes = "abcdefghijklmnopqrstuvwxyz0123456789"
+const (
+	letterBytes        = "abcdefghijklmnopqrstuvwxyz0123456789"
+	DefaultComposeFile = "docker-compose.yml"
+)
 
 var unsupportedKey = map[string]string{
 	"Build":         "",
@@ -998,6 +1001,7 @@ func komposeConvert(komposeObject KomposeObject, opt convertOptions) {
 // Convert tranforms docker compose or dab file to k8s objects
 func Convert(c *cli.Context) {
 	inputFile := c.String("file")
+	dabFile := c.String("bundle")
 	outFile := c.String("out")
 	generateYaml := c.BoolT("yaml")
 	toStdout := c.BoolT("stdout")
@@ -1006,7 +1010,6 @@ func Convert(c *cli.Context) {
 	createRS := c.BoolT("replicaset")
 	createRC := c.BoolT("replicationcontroller")
 	createChart := c.BoolT("chart")
-	fromBundles := c.BoolT("from-bundles")
 	replicas := c.Int("replicas")
 	singleOutput := len(outFile) != 0 || toStdout
 	createDeploymentConfig := c.BoolT("deploymentconfig")
@@ -1047,6 +1050,9 @@ func Convert(c *cli.Context) {
 			logrus.Fatalf("Error: only one type of Kubernetes controller can be generated when --out or --stdout is specified")
 		}
 	}
+	if len(dabFile) > 0 && len(inputFile) > 0 && inputFile != DefaultComposeFile {
+		logrus.Fatalf("Error: compose file and dab file cannot be specified at the same time")
+	}
 
 	var f *os.File
 	if !createChart {
@@ -1056,8 +1062,8 @@ func Convert(c *cli.Context) {
 
 	komposeObject := KomposeObject{}
 
-	if fromBundles {
-		komposeObject = loadBundlesFile(inputFile)
+	if len(dabFile) > 0 {
+		komposeObject = loadBundlesFile(dabFile)
 	} else {
 		komposeObject = loadComposeFile(inputFile, c)
 	}
diff --git a/cli/command/command.go b/cli/command/command.go
index bcce6aa1..de9842b3 100644
--- a/cli/command/command.go
+++ b/cli/command/command.go
@@ -17,6 +17,8 @@ limitations under the License.
 package command
 
 import (
+	"fmt"
+
 	"github.com/skippbox/kompose/cli/app"
 	"github.com/urfave/cli"
 )
@@ -25,17 +27,22 @@ import (
 func ConvertCommand() cli.Command {
 	return cli.Command{
 		Name:  "convert",
-		Usage: "Convert docker-compose.yml to Kubernetes objects",
+		Usage: fmt.Sprintf("Convert %s to Kubernetes objects", app.DefaultComposeFile),
 		Action: func(c *cli.Context) {
 			app.Convert(c)
 		},
 		Flags: []cli.Flag{
 			cli.StringFlag{
 				Name:   "file,f",
-				Usage:  "Specify an alternate compose file (default: docker-compose.yml)",
-				Value:  "docker-compose.yml",
+				Usage:  fmt.Sprintf("Specify an alternate compose file (default: %s)", app.DefaultComposeFile),
+				Value:  app.DefaultComposeFile,
 				EnvVar: "COMPOSE_FILE",
 			},
+			cli.StringFlag{
+				Name:   "bundle,dab",
+				Usage:  "Specify a Distributed Application Bundle (DAB) file",
+				EnvVar: "DAB_FILE",
+			},
 			cli.StringFlag{
 				Name:   "out,o",
 				Usage:  "Specify file name in order to save objects into",
@@ -78,11 +85,6 @@ func ConvertCommand() cli.Command {
 				Name:  "stdout",
 				Usage: "Print Kubernetes objects to stdout",
 			},
-			// FIXME: this flag should be used together with --file/-f in order to specify dab file.
-			cli.BoolFlag{
-				Name:  "from-bundles",
-				Usage: "Getting input from docker DAB file",
-			},
 		},
 	}
 }