diff --git a/Pilz.UI.Telerik.Symbols/RadSymbols.cs b/Pilz.UI.Telerik.Symbols/RadSymbols.cs
index 8495df4..fef1aa2 100644
--- a/Pilz.UI.Telerik.Symbols/RadSymbols.cs
+++ b/Pilz.UI.Telerik.Symbols/RadSymbols.cs
@@ -6,8 +6,8 @@ namespace Pilz.UI.Telerik.Symbols;
 
 public static class RadSymbols
 {
-    private static IRadSymbolFactory<SymbolsColor>? color;
-    private static IRadSymbolFactory<SymbolsFluent>? fluent;
+    private static dynamic? color;
+    private static dynamic? fluent;
 
     public static IRadSymbolFactory<SymbolsColor> Color => color ??= new ColorFactory();
     public static IRadSymbolFactory<SymbolsFluent> Fluent => fluent ??= new FluentFactory();