diff --git a/app/src/main/java/jp/juggler/subwaytooter/pref/impl/BooleanPref.kt b/app/src/main/java/jp/juggler/subwaytooter/pref/impl/BooleanPref.kt
index 5732a3f0..2123897c 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/pref/impl/BooleanPref.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/pref/impl/BooleanPref.kt
@@ -1,7 +1,6 @@
 package jp.juggler.subwaytooter.pref.impl
 
 import android.content.SharedPreferences
-import jp.juggler.subwaytooter.App1
 
 class BooleanPref(key: String, defVal: Boolean) : BasePref<Boolean>(key, defVal) {
 
diff --git a/app/src/main/java/jp/juggler/subwaytooter/pref/impl/FloatPref.kt b/app/src/main/java/jp/juggler/subwaytooter/pref/impl/FloatPref.kt
index 31b0c4b9..db0343fa 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/pref/impl/FloatPref.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/pref/impl/FloatPref.kt
@@ -1,7 +1,6 @@
 package jp.juggler.subwaytooter.pref.impl
 
 import android.content.SharedPreferences
-import jp.juggler.subwaytooter.App1
 
 class FloatPref(key: String, defVal: Float) : BasePref<Float>(key, defVal) {
 
diff --git a/app/src/main/java/jp/juggler/subwaytooter/pref/impl/IntPref.kt b/app/src/main/java/jp/juggler/subwaytooter/pref/impl/IntPref.kt
index d06ccf31..e36b3a5d 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/pref/impl/IntPref.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/pref/impl/IntPref.kt
@@ -1,7 +1,6 @@
 package jp.juggler.subwaytooter.pref.impl
 
 import android.content.SharedPreferences
-import jp.juggler.subwaytooter.App1
 
 class IntPref(key: String, defVal: Int) : BasePref<Int>(key, defVal) {