diff --git a/Gopkg.lock b/Gopkg.lock
new file mode 100644
index 0000000..e6ce16f
--- /dev/null
+++ b/Gopkg.lock
@@ -0,0 +1,21 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  branch = "master"
+  name = "git.loafle.net/overflow/util-go"
+  packages = ["reflect"]
+  revision = "fae2846a85aad314ee44957d428478fbe800045f"
+
+[[projects]]
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  revision = "5420a8b6744d3b0345ab293f6fcba19c978f1183"
+  version = "v2.2.1"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "8c01a65650b6ec8ab959868d85ad4a1a857328764f44e27b654d8916c1f65d6f"
+  solver-name = "gps-cdcl"
+  solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
new file mode 100644
index 0000000..ab853ab
--- /dev/null
+++ b/Gopkg.toml
@@ -0,0 +1,38 @@
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  branch = "master"
+  name = "git.loafle.net/overflow/util-go"
+
+[[constraint]]
+  name = "gopkg.in/yaml.v2"
+  version = "2.2.1"
+
+[prune]
+  go-tests = true
+  unused-packages = true
diff --git a/registry.go b/registry.go
index ca549c3..dbbe991 100644
--- a/registry.go
+++ b/registry.go
@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	our "git.loafle.net/overflow/util-go/reflect"
+	yaml "gopkg.in/yaml.v2"
 )
 
 type Registry interface {
@@ -160,6 +161,28 @@ func (r *AnnotationRegistry) getAnnotation(f *reflect.StructField) (map[reflect.
 			}
 		}
 
+		_v := reflect.Indirect(reflect.ValueOf(i))
+		for index := 0; index < _v.NumField(); index++ {
+			_f := _v.Field(index)
+			_fs := def.rt.Field(index)
+
+			if !_f.CanAddr() || !_f.CanInterface() {
+				continue
+			}
+
+			if isBlank := reflect.DeepEqual(_f.Interface(), reflect.Zero(_f.Type()).Interface()); isBlank {
+				// Set default configuration if blank
+				if value := _fs.Tag.Get(DefaultTag); value != "" {
+					if err := yaml.Unmarshal([]byte(value), _f.Addr().Interface()); err != nil {
+						return nil, fmt.Errorf("Unmarshal failed %v", err)
+					}
+				} else if _fs.Tag.Get(RequiredTag) == "true" {
+					// return error if it is required but blank
+					return nil, fmt.Errorf("%s is required, but blank", _fs.Name)
+				}
+			}
+		}
+
 		annotations[def.t] = i
 	}
 
diff --git a/registry_test.go b/registry_test.go
index 48fe6bd..8b91140 100644
--- a/registry_test.go
+++ b/registry_test.go
@@ -3,18 +3,13 @@ package annotation
 import (
 	"reflect"
 	"testing"
-
-	di "git.loafle.net/overflow/di-go"
 )
 
 var InjectableAnnotationType = reflect.TypeOf((*InjectableAnnotation)(nil))
 
 type InjectableAnnotation struct {
-	Annotation    `@name:"@Injectable"`
-	Name          string       `json:"name" @default:""`
-	InitMethod    string       `json:"initMethod"`
-	DestroyMethod string       `json:"destroyMethod"`
-	Scope         di.ScopeType `json:"scope"`
+	Annotation `@name:"@Injectable"`
+	Name       string `json:"name" @default:"" @required:"false"`
 }
 
 var InjectableServiceType = reflect.TypeOf((*InjectableService)(nil))
@@ -102,6 +97,11 @@ func TestAnnotationRegistry_Register(t *testing.T) {
 			if err := r.Register(tt.args.t); (err != nil) != tt.wantErr {
 				t.Errorf("AnnotationRegistry.Register() error = %v, wantErr %v", err, tt.wantErr)
 			}
+			a, err := r.GetTypeAnnotation(InjectableServiceType, InjectableAnnotationType)
+			if nil != err {
+				t.Error(err)
+			}
+			t.Log(a)
 		})
 	}
 }