diff -r ef2fc0210362 -r 90bd2c331703 qmlfrontend/CMakeLists.txt
--- a/qmlfrontend/CMakeLists.txt	Fri Dec 07 13:04:00 2018 +0100
+++ b/qmlfrontend/CMakeLists.txt	Fri Dec 07 13:35:08 2018 +0100
@@ -15,6 +15,8 @@
     "team.cpp" "team.h"
     "engine_instance.cpp" "engine_instance.h"
     "preview_image_provider.cpp" "preview_image_provider.h"
-    "engine_interface.h")
+    "engine_interface.h"
+    "preview_acceptor.cpp" "preview_acceptor.h"
+    )
 
 target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Quick)