diff --git a/src/Ursa/Controls/Dialog/Dialog.cs b/src/Ursa/Controls/Dialog/Dialog.cs
index 9922f15..459ff81 100644
--- a/src/Ursa/Controls/Dialog/Dialog.cs
+++ b/src/Ursa/Controls/Dialog/Dialog.cs
@@ -216,7 +216,7 @@ public static class Dialog
         }
         if (!string.IsNullOrWhiteSpace(options.StyleClass))
         {
-            var styles = options.StyleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = options.StyleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             window.Classes.AddRange(styles);
         }
     }
@@ -247,7 +247,7 @@ public static class Dialog
         }
         if (!string.IsNullOrWhiteSpace(options.StyleClass))
         {
-            var styles = options.StyleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = options.StyleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             window.Classes.AddRange(styles);
         }
     }
diff --git a/src/Ursa/Controls/Dialog/OverlayDialog.cs b/src/Ursa/Controls/Dialog/OverlayDialog.cs
index 6028f83..fe67222 100644
--- a/src/Ursa/Controls/Dialog/OverlayDialog.cs
+++ b/src/Ursa/Controls/Dialog/OverlayDialog.cs
@@ -207,7 +207,7 @@ public static class OverlayDialog
         control.CanResize = options.CanResize;
         if (!string.IsNullOrWhiteSpace(options.StyleClass))
         {
-            var styles = options.StyleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = options.StyleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             control.Classes.AddRange(styles);
         }
         DialogControlBase.SetCanDragMove(control, options.CanDragMove);
@@ -238,7 +238,7 @@ public static class OverlayDialog
         control.CanResize = options.CanResize;
         if (!string.IsNullOrWhiteSpace(options.StyleClass))
         {
-            var styles = options.StyleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = options.StyleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             control.Classes.AddRange(styles);
         }
         DialogControlBase.SetCanDragMove(control, options.CanDragMove);
diff --git a/src/Ursa/Controls/Drawer/Drawer.cs b/src/Ursa/Controls/Drawer/Drawer.cs
index 2bc3340..048a7aa 100644
--- a/src/Ursa/Controls/Drawer/Drawer.cs
+++ b/src/Ursa/Controls/Drawer/Drawer.cs
@@ -220,7 +220,7 @@ public static class Drawer
 
         if (!string.IsNullOrWhiteSpace(options.StyleClass))
         {
-            var styles = options.StyleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = options.StyleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             drawer.Classes.AddRange(styles);
         }
     }
@@ -247,7 +247,7 @@ public static class Drawer
         }
         if (!string.IsNullOrWhiteSpace(options.StyleClass))
         {
-            var styles = options.StyleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = options.StyleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             drawer.Classes.AddRange(styles);
         }
     }
diff --git a/src/Ursa/Controls/MessageBox/MessageBox.cs b/src/Ursa/Controls/MessageBox/MessageBox.cs
index 14c6c8a..d090b59 100644
--- a/src/Ursa/Controls/MessageBox/MessageBox.cs
+++ b/src/Ursa/Controls/MessageBox/MessageBox.cs
@@ -22,7 +22,7 @@ public static class MessageBox
         };
         if (!string.IsNullOrWhiteSpace(styleClass))
         {
-            var styles = styleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = styleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             messageWindow.Classes.AddRange(styles);
         }
         var lifetime = Application.Current?.ApplicationLifetime;
@@ -54,7 +54,7 @@ public static class MessageBox
         };
         if (!string.IsNullOrWhiteSpace(styleClass))
         {
-            var styles = styleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = styleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             messageWindow.Classes.AddRange(styles!);
         }
         var result = await messageWindow.ShowDialog<MessageBoxResult>(owner);
@@ -82,7 +82,7 @@ public static class MessageBox
         };
         if (!string.IsNullOrWhiteSpace(styleClass))
         {
-            var styles = styleClass!.Split([' '], StringSplitOptions.RemoveEmptyEntries);
+            var styles = styleClass!.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
             messageControl.Classes.AddRange(styles!);
         }
         host.AddModalDialog(messageControl);