diff --git a/app/src/main/java/org/linphone/call/CallActivity.java b/app/src/main/java/org/linphone/call/CallActivity.java
index 8849141ba..ff65b3ae4 100644
--- a/app/src/main/java/org/linphone/call/CallActivity.java
+++ b/app/src/main/java/org/linphone/call/CallActivity.java
@@ -771,8 +771,8 @@ public class CallActivity extends LinphoneGenericActivity
 
     private void updateButtonsVisibility(boolean visible) {
         findViewById(R.id.status_bar_fragment).setVisibility(visible ? View.VISIBLE : View.GONE);
-        mActiveCalls.setVisibility(visible ? View.VISIBLE : View.GONE);
-        mButtons.setVisibility(visible ? View.VISIBLE : View.GONE);
+        if (mActiveCalls != null) mActiveCalls.setVisibility(visible ? View.VISIBLE : View.GONE);
+        if (mButtons != null) mButtons.setVisibility(visible ? View.VISIBLE : View.GONE);
     }
 
     private void makeButtonsVisibleTemporary() {
diff --git a/app/src/main/res/layout-land/call.xml b/app/src/main/res/layout-land/call.xml
index 36740531d..fbf4557ce 100644
--- a/app/src/main/res/layout-land/call.xml
+++ b/app/src/main/res/layout-land/call.xml
@@ -150,7 +150,7 @@
             android:layout_height="match_parent"
             android:layout_gravity="left"
             android:layout_marginTop="40dp"
-            android:background="@color/white_color">
+            android:background="?attr/backgroundColor">
 
             <fragment
                 android:id="@+id/call_stats_fragment"