diff --git a/app/src/main/kotlin/jackall/moncalc/App.kt b/app/src/main/kotlin/jackall/moncalc/App.kt
index e19bc6a..f559c23 100644
--- a/app/src/main/kotlin/jackall/moncalc/App.kt
+++ b/app/src/main/kotlin/jackall/moncalc/App.kt
@@ -4,6 +4,7 @@
 import android.app.Activity
 import android.app.Application
 import android.os.Bundle
+import io.realm.Realm
 
 /**
  * Created by matsumoto_k on 2017/11/01.
@@ -20,6 +21,7 @@
     override fun onCreate() {
         super.onCreate()
         instance = this
+        Realm.init(this)
         registerActivityLifecycleCallbacks(object : Application.ActivityLifecycleCallbacks {
             override fun onActivityCreated(activity: Activity, saveInstanceState: Bundle?) {