diff --git a/src/Analyzers/Analyzers/ApiUsage/UnsupportedCallSiteAttributeAnalyzer.cs b/src/Analyzers/Analyzers/ApiUsage/UnsupportedCallSiteAttributeAnalyzer.cs
index 3ba6fb3376..eb9c81c81b 100644
--- a/src/Analyzers/Analyzers/ApiUsage/UnsupportedCallSiteAttributeAnalyzer.cs
+++ b/src/Analyzers/Analyzers/ApiUsage/UnsupportedCallSiteAttributeAnalyzer.cs
@@ -15,7 +15,7 @@ public sealed class UnsupportedCallSiteAttributeAnalyzer : DiagnosticAnalyzer
         private const string unsupportedCallSiteAttributeMetadataName = "DotVVM.Framework.CodeAnalysis.UnsupportedCallSiteAttribute";
         private const int callSiteTypeServerUnderlyingValue = 0;
 
-        public static DiagnosticDescriptor DoNotInvokeMethodFromUnsupportedCallSite = new(
+        public static DiagnosticDescriptor DoNotInvokeMethodFromUnsupportedCallSite = new DiagnosticDescriptor(
             DotvvmDiagnosticIds.DoNotInvokeMethodFromUnsupportedCallSiteRuleId,
             unsupportedCallSiteTitle,
             unsupportedCallSiteMessage,