diff --git a/client/mainmenu/CMainMenu.cpp b/client/mainmenu/CMainMenu.cpp
index e5e8af87c..95ba7c80a 100644
--- a/client/mainmenu/CMainMenu.cpp
+++ b/client/mainmenu/CMainMenu.cpp
@@ -277,7 +277,7 @@ CMenuEntry::CMenuEntry(CMenuScreen * parent, const JsonNode & config)
 			for (const auto& item : campaign["items"].Vector()) {
 				std::string filename = item["file"].String();
 
-				if (CResourceHandler::get()->existsResource(ResourcePath(filename + ".h3c"))) {
+				if (CResourceHandler::get()->existsResource(ResourcePath(filename, EResType::CAMPAIGN))) {
 					fileExists = true;
 					break; 
 				}