diff --git a/client/ClientCommandManager.h b/client/ClientCommandManager.h
index 01dae3774..c17a2da8f 100644
--- a/client/ClientCommandManager.h
+++ b/client/ClientCommandManager.h
@@ -10,7 +10,9 @@
 
 #pragma once
 
+VCMI_LIB_NAMESPACE_BEGIN
 class PlayerColor;
+VCMI_LIB_NAMESPACE_END
 class CIntObject;
 
 class ClientCommandManager