diff --git a/app/build.gradle b/app/build.gradle
index 95acbb8..db13ac1 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
         applicationId "com.github.axet.audiorecorder"
         minSdkVersion 9
         targetSdkVersion 23 // 24+ file:// unable to open
-        versionCode 250
-        versionName "3.1.19"
+        versionCode 251
+        versionName "3.1.20"
     }
     signingConfigs {
         release {
@@ -55,5 +55,5 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.github.axet:android-audio-library:1.0.87' // compile project(':android-audio-library')
+    compile 'com.github.axet:android-audio-library:1.0.88' // compile project(':android-audio-library')
 }
diff --git a/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java b/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java
index 632d173..176c05c 100644
--- a/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java
+++ b/app/src/main/java/com/github/axet/audiorecorder/activities/MainActivity.java
@@ -100,7 +100,16 @@ public class MainActivity extends AppCompatThemeActivity {
 
         RecordingService.startIfPending(this);
 
-        receiver = new ScreenReceiver(this);
+        final SharedPreferences shared = PreferenceManager.getDefaultSharedPreferences(this);
+        receiver = new ScreenReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                if (!shared.getBoolean(MainApplication.PREFERENCE_CONTROLS, false))
+                    return;
+                super.onReceive(context, intent);
+            }
+        };
+        receiver.registerReceiver(this);
     }
 
     void checkPending() {