diff --git a/app/src/main/java/com/cappielloantonio/play/ui/fragment/dialog/ServerSignupDialog.java b/app/src/main/java/com/cappielloantonio/play/ui/fragment/dialog/ServerSignupDialog.java
index 313245f4..7ac8e04b 100644
--- a/app/src/main/java/com/cappielloantonio/play/ui/fragment/dialog/ServerSignupDialog.java
+++ b/app/src/main/java/com/cappielloantonio/play/ui/fragment/dialog/ServerSignupDialog.java
@@ -51,7 +51,7 @@ public class ServerSignupDialog extends DialogFragment {
 
         bind = DialogServerSignupBinding.inflate(LayoutInflater.from(requireContext()));
 
-        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppTheme_Dialog);
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppTheme_AlertDialog);
 
         builder.setView(bind.getRoot())
                 .setTitle("Add server")
diff --git a/app/src/main/res/values-night/styles.xml b/app/src/main/res/values-night/styles.xml
index affd378a..248167da 100644
--- a/app/src/main/res/values-night/styles.xml
+++ b/app/src/main/res/values-night/styles.xml
@@ -33,6 +33,12 @@
         <item name="android:windowMinWidthMinor">82%</item>
     </style>
 
+    <style name="AppTheme.AlertDialog" parent="Theme.AppCompat.DayNight.Dialog.Alert">
+        <item name="android:windowBackground">@drawable/dialog_shape</item>
+        <item name="android:windowMinWidthMajor">86%</item>
+        <item name="android:windowMinWidthMinor">86%</item>
+    </style>
+
     <style name="Divider">
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">0.5dp</item>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index bf88e96a..7912468f 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -33,6 +33,12 @@
         <item name="android:windowMinWidthMinor">82%</item>
     </style>
 
+    <style name="AppTheme.AlertDialog" parent="Theme.AppCompat.DayNight.Dialog.Alert">
+        <item name="android:windowBackground">@drawable/dialog_shape</item>
+        <item name="android:windowMinWidthMajor">86%</item>
+        <item name="android:windowMinWidthMinor">86%</item>
+    </style>
+
     <style name="Divider">
         <item name="android:layout_width">match_parent</item>
         <item name="android:layout_height">0.5dp</item>