diff --git a/core/res/res/anim/task_close_enter.xml b/core/res/res/anim/task_close_enter.xml
index b07f470dd5f5e..bea0ee51d5939 100644
--- a/core/res/res/anim/task_close_enter.xml
+++ b/core/res/res/anim/task_close_enter.xml
@@ -18,7 +18,7 @@
 -->
 
 <set xmlns:android="http://schemas.android.com/apk/res/android"
-        android:background="#ff000000" android:shareInterpolator="false" android:zAdjustment="normal">
+        android:shareInterpolator="false" android:zAdjustment="normal">
 
     <alpha android:fromAlpha="0.6" android:toAlpha="1.0"
             android:fillEnabled="true" android:fillBefore="true" android:fillAfter="true"
diff --git a/core/res/res/anim/task_close_exit.xml b/core/res/res/anim/task_close_exit.xml
index d23c74ffc1608..b6a08070c3ce4 100644
--- a/core/res/res/anim/task_close_exit.xml
+++ b/core/res/res/anim/task_close_exit.xml
@@ -18,7 +18,7 @@
 -->
 
 <set xmlns:android="http://schemas.android.com/apk/res/android"
-        android:background="#ff000000" android:shareInterpolator="false" android:zAdjustment="top">
+        android:shareInterpolator="false" android:zAdjustment="top">
 
     <alpha android:fromAlpha="1.0" android:toAlpha="0"
             android:fillEnabled="true" android:fillBefore="true" android:fillAfter="true"