diff --git a/src/HttpRequestData.Extensions/HttpRequestData.Extensions/HttpRequestDataExtensions.cs b/src/HttpRequestData.Extensions/HttpRequestData.Extensions/HttpRequestDataExtensions.cs
index c6099e9..fb6b389 100644
--- a/src/HttpRequestData.Extensions/HttpRequestData.Extensions/HttpRequestDataExtensions.cs
+++ b/src/HttpRequestData.Extensions/HttpRequestData.Extensions/HttpRequestDataExtensions.cs
@@ -153,7 +153,7 @@ public static async Task<T> GetRequestParametersAsync<T>(
 				if (requestObject == null) throw new HttpRequestDataException("The request body is not correctly formatted.");
 			}
 
-			if (queryValuesAvailalbe || routeValues.Any())
+			if (queryValuesAvailalbe || (routeValues != default && routeValues.Any()))
 				foreach (PropertyInfo propertyInfo in typeof(T).GetProperties())
 					if (propertyInfo.CanWrite)
 					{