diff --git a/src/NetEscapades.Configuration.Yaml/YamlConfigurationStreamParser.cs b/src/NetEscapades.Configuration.Yaml/YamlConfigurationStreamParser.cs
index 38d262a..c81f5b7 100644
--- a/src/NetEscapades.Configuration.Yaml/YamlConfigurationStreamParser.cs
+++ b/src/NetEscapades.Configuration.Yaml/YamlConfigurationStreamParser.cs
@@ -35,7 +35,7 @@ public IDictionary<string, string> Parse(Stream input)
 
         private void VisitYamlNodePair(KeyValuePair<YamlNode, YamlNode> yamlNodePair)
         {
-            var context = ((YamlScalarNode)yamlNodePair.Key).Value;
+            var context = yamlNodePair.Key.ToString();
             VisitYamlNode(context, yamlNodePair.Value);
         }