diff --git a/src/dockerclient/auth.go b/src/dockerclient/auth.go
index d94b23f5..9f60606b 100644
--- a/src/dockerclient/auth.go
+++ b/src/dockerclient/auth.go
@@ -19,10 +19,11 @@ package dockerclient
 import (
 	"encoding/base64"
 	"fmt"
-	"github.com/grammarly/rocker/src/imagename"
 	"strings"
 	"sync"
 
+	"github.com/grammarly/rocker/src/imagename"
+
 	log "github.com/Sirupsen/logrus"
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/credentials"
@@ -54,7 +55,7 @@ func GetAuthForRegistry(auth *docker.AuthConfigurations, image *imagename.ImageN
 	}
 	// Optionally override auth took via aws-sdk (through ENV vars)
 	if image.IsECR() {
-		if awsRegAuth, err := GetECRAuth(registry); err != nil && err != credentials.ErrNoValidProvidersFoundInChain {
+		if awsRegAuth, err := GetECRAuth(registry, image.GetECRRegion()); err != nil && err != credentials.ErrNoValidProvidersFoundInChain {
 			return result, err
 		} else if awsRegAuth.Username != "" {
 			return awsRegAuth, nil
@@ -85,7 +86,7 @@ func GetAuthForRegistry(auth *docker.AuthConfigurations, image *imagename.ImageN
 }
 
 // GetECRAuth requests AWS ECR API to get docker.AuthConfiguration token
-func GetECRAuth(registry string) (result docker.AuthConfiguration, err error) {
+func GetECRAuth(registry, region string) (result docker.AuthConfiguration, err error) {
 	_ecrAuthCache.mu.Lock()
 	defer _ecrAuthCache.mu.Unlock()
 
@@ -97,9 +98,8 @@ func GetECRAuth(registry string) (result docker.AuthConfiguration, err error) {
 		_ecrAuthCache.tokens[registry] = result
 	}()
 
-	// TODO: take region from the registry hostname?
 	cfg := &aws.Config{
-		Region: aws.String("us-east-1"),
+		Region: aws.String(region),
 	}
 
 	if log.StandardLogger().Level >= log.DebugLevel {
diff --git a/src/imagename/imagename.go b/src/imagename/imagename.go
index 6d5e3127..e5500755 100644
--- a/src/imagename/imagename.go
+++ b/src/imagename/imagename.go
@@ -51,7 +51,7 @@ const (
 )
 
 var (
-	ecrRe = regexp.MustCompile("^\\d+\\.dkr\\.ecr\\.[^\\.]+\\.amazonaws\\.com$")
+	ecrRe = regexp.MustCompile("^(\\d+)\\.dkr\\.ecr\\.([^\\.]+)\\.amazonaws\\.com$")
 )
 
 // ImageName is the data structure with describes docker image name
@@ -250,6 +250,12 @@ func (img ImageName) IsECR() bool {
 	return ecrRe.MatchString(img.Registry)
 }
 
+// GetECRRegion returns the regoin of the AWS ECR registry
+func (img ImageName) GetECRRegion() string {
+	matches := ecrRe.FindStringSubmatch(img.Registry)
+	return matches[2]
+}
+
 // TagAsVersion return semver.Version of the current image tag in case it's in semver format
 func (img ImageName) TagAsVersion() (ver *semver.Version) {
 	ver, _ = semver.NewVersion(strings.TrimPrefix(img.Tag, "v"))