diff --git a/src/main/res/xml/pref_all.xml b/src/main/res/xml/pref_all.xml
index 07db85df..68238243 100644
--- a/src/main/res/xml/pref_all.xml
+++ b/src/main/res/xml/pref_all.xml
@@ -35,13 +35,13 @@
                 android:summary="@string/sitekey_summary"
                 android:title="@string/sitekey">
         </com.github.shadowsocks.preferences.PasswordEditTextPreference>
-        <ListPreference
+        <com.github.shadowsocks.preferences.SummaryListPreference
                 android:defaultValue="rc4"
                 android:key="encMethod"
                 android:entries="@array/enc_method_entry"
                 android:entryValues="@array/enc_method_value"
                 android:title="@string/enc_method">
-        </ListPreference>
+        </com.github.shadowsocks.preferences.SummaryListPreference>
 
     </PreferenceCategory>
 
diff --git a/src/main/scala/com/github/shadowsocks/preferences/SummaryListPreference.scala b/src/main/scala/com/github/shadowsocks/preferences/SummaryListPreference.scala
new file mode 100644
index 00000000..d4759d2d
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/preferences/SummaryListPreference.scala
@@ -0,0 +1,62 @@
+/*
+ * Shadowsocks - A shadowsocks client for Android
+ * Copyright (C) 2014 <max.c.lv@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ *                            ___====-_  _-====___
+ *                      _--^^^#####//      \\#####^^^--_
+ *                   _-^##########// (    ) \\##########^-_
+ *                  -############//  |\^^/|  \\############-
+ *                _/############//   (@::@)   \\############\_
+ *               /#############((     \\//     ))#############\
+ *              -###############\\    (oo)    //###############-
+ *             -#################\\  / VV \  //#################-
+ *            -###################\\/      \//###################-
+ *           _#/|##########/\######(   /\   )######/\##########|\#_
+ *           |/ |#/\#/\#/\/  \#/\##\  |  |  /##/\#/  \/\#/\#/\#| \|
+ *           `  |/  V  V  `   V  \#\| |  | |/#/  V   '  V  V  \|  '
+ *              `   `  `      `   / | |  | | \   '      '  '   '
+ *                               (  | |  | |  )
+ *                              __\ | |  | | /__
+ *                             (vvv(VVV)(VVV)vvv)
+ *
+ *                              HERE BE DRAGONS
+ *
+ */
+
+package com.github.shadowsocks.preferences
+
+import android.preference.ListPreference
+import android.content.Context
+import android.util.AttributeSet
+
+class SummaryListPreference(context: Context, attrs: AttributeSet)
+  extends ListPreference(context, attrs) {
+
+  override def setValue(text: String) {
+    super.setValue(text)
+    setSummary(text.toUpperCase)
+  }
+
+  override def setSummary(summary: CharSequence) {
+    if (summary.toString.isEmpty) {
+      super.setSummary("")
+    } else {
+      super.setSummary(summary)
+    }
+  }
+
+}