diff --git a/src/OverteClient.hpp b/src/OverteClient.hpp
index 5b86b49..e797955 100644
--- a/src/OverteClient.hpp
+++ b/src/OverteClient.hpp
@@ -5,6 +5,7 @@
 #include <string>
 #include <unordered_map>
 #include <vector>
+#include <memory>
 
 #include <glm/glm.hpp>
 
@@ -13,6 +14,9 @@
 #include <netinet/in.h>
 #include <netdb.h>
 
+// Forward declarations
+class OverteAuth;
+
 // Overte entity types (matching Overte EntityTypes.h)
 enum class EntityType {
 	Unknown,