diff --git a/server/Oraide.Csharp/CodeParsers/RoslynCodeParser.cs b/server/Oraide.Csharp/CodeParsers/RoslynCodeParser.cs
index 034aff2..44ca873 100644
--- a/server/Oraide.Csharp/CodeParsers/RoslynCodeParser.cs
+++ b/server/Oraide.Csharp/CodeParsers/RoslynCodeParser.cs
@@ -81,7 +81,7 @@ public static (ILookup<string, TraitInfo>,
 										if (member is FieldDeclarationSyntax fieldMember
 										    && fieldMember.Modifiers.Any(x => x.ValueText == "static")
 										    && fieldMember.Modifiers.Any(x => x.ValueText == "readonly")
-										    && (fieldMember.Declaration.Type as GenericNameSyntax).Identifier.ValueText == "SpriteSequenceField")
+										    && (fieldMember.Declaration.Type as GenericNameSyntax)?.Identifier.ValueText == "SpriteSequenceField")
 										{
 											foreach (var fieldInfo in ParseClassField(filePath, fileText, fieldMember))
 											{