diff --git a/CryptoExchange.Net/Converters/SystemTextJson/EnumConverter.cs b/CryptoExchange.Net/Converters/SystemTextJson/EnumConverter.cs
index ff5dfb8..252e6ae 100644
--- a/CryptoExchange.Net/Converters/SystemTextJson/EnumConverter.cs
+++ b/CryptoExchange.Net/Converters/SystemTextJson/EnumConverter.cs
@@ -140,10 +140,10 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
                 _ => throw new Exception("Invalid token type for enum deserialization: " + reader.TokenType)
             };
 
-            if (string.IsNullOrEmpty(stringValue))
+            if (stringValue is null)
                 return null;
 
-            if (!GetValue(enumType, stringValue!, out var result))
+            if (!GetValue(enumType, stringValue, out var result))
             {
                 if (string.IsNullOrWhiteSpace(stringValue))
                 {
@@ -204,6 +204,13 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
                 return false;
             }
 
+            if (String.IsNullOrEmpty(value))
+            {
+                // An empty/null value will always fail when parsing, so just return here
+                result = default;
+                return false;
+            }
+
             try
             {
                 // If no explicit mapping is found try to parse string