diff --git a/app/src/main/java/io/legado/app/ui/widget/BadgeView.kt b/app/src/main/java/io/legado/app/ui/widget/BadgeView.kt
index b644ad5fb..3f1572164 100644
--- a/app/src/main/java/io/legado/app/ui/widget/BadgeView.kt
+++ b/app/src/main/java/io/legado/app/ui/widget/BadgeView.kt
@@ -36,6 +36,7 @@ class BadgeView @JvmOverloads constructor(
             text = text
         }
     private var radius: Float = 0.toFloat()
+    private var flatangle: Boolean
 
     val badgeCount: Int?
         get() {
@@ -77,6 +78,8 @@ class BadgeView @JvmOverloads constructor(
         val typedArray = context.obtainStyledAttributes(attrs, R.styleable.BadgeView)
         val radios =
             typedArray.getDimensionPixelOffset(R.styleable.BadgeView_bv_radius, 8)
+        flatangle =
+            typedArray.getBoolean(R.styleable.BadgeView_up_flat_angle, false)
         typedArray.recycle()
 
         if (layoutParams !is LayoutParams) {
@@ -111,6 +114,7 @@ class BadgeView @JvmOverloads constructor(
         val radius = dip2Px(dipRadius).toFloat()
         val radiusArray =
             floatArrayOf(radius, radius, radius, radius, radius, radius, radius, radius)
+        if (flatangle) { radiusArray.fill(0f, 0, 3) }
 
         val roundRect = RoundRectShape(radiusArray, null, null)
         val bgDrawable = ShapeDrawable(roundRect)
diff --git a/app/src/main/res/layout/item_bookshelf_grid.xml b/app/src/main/res/layout/item_bookshelf_grid.xml
index ca639edd4..20d5ab3e2 100644
--- a/app/src/main/res/layout/item_bookshelf_grid.xml
+++ b/app/src/main/res/layout/item_bookshelf_grid.xml
@@ -56,6 +56,7 @@
         android:includeFontPadding="false"
         android:singleLine="true"
         app:bv_radius="1dp"
+        app:up_flat_angle="true"
         app:layout_constraintLeft_toLeftOf="@id/iv_cover"
         app:layout_constraintBottom_toBottomOf="@id/iv_cover"
         tools:ignore="RtlHardcoded" />
diff --git a/app/src/main/res/values/attrs.xml b/app/src/main/res/values/attrs.xml
index de2fe5dc5..297ba1065 100644
--- a/app/src/main/res/values/attrs.xml
+++ b/app/src/main/res/values/attrs.xml
@@ -143,5 +143,6 @@
 
     <declare-styleable name="BadgeView">
         <attr name="bv_radius" format="dimension" />
+        <attr name="up_flat_angle" format="boolean" />
     </declare-styleable>
 </resources>
\ No newline at end of file