diff --git a/daemon/mgr/image_utils.go b/daemon/mgr/image_utils.go
index ba74efc8d..fb96a62df 100644
--- a/daemon/mgr/image_utils.go
+++ b/daemon/mgr/image_utils.go
@@ -2,12 +2,16 @@ package mgr
 
 import (
 	"regexp"
+	"strings"
 
 	"github.com/alibaba/pouch/pkg/reference"
 )
 
 // addRegistry add default registry if needed.
 func (mgr *ImageManager) addRegistry(input string) string {
+	// Trim the prefix if the input is image ID with "sha256:".
+	// NOTE: we should make it more elegant and comprehensive.
+	input = strings.TrimPrefix(input, "sha256:")
 	if isNumericID(input) {
 		return input
 	}