diff --git a/tray/CMakeLists.txt b/tray/CMakeLists.txt
index c0d1ceaa..60cdbd8e 100644
--- a/tray/CMakeLists.txt
+++ b/tray/CMakeLists.txt
@@ -33,7 +33,7 @@ set(WIDGETS_SRC_FILES
 set(RES_FILES resources/${META_PROJECT_NAME}icons.qrc)
 set(WIDGETS_UI_FILES gui/traywidget.ui)
 
-set(TS_FILES translations/${META_PROJECT_NAME}_de_DE.ts translations/${META_PROJECT_NAME}_en_US.ts)
+set(TS_FILES translations/${META_PROJECT_NAME}_cs_CZ.ts translations/${META_PROJECT_NAME}_de_DE.ts translations/${META_PROJECT_NAME}_en_US.ts)
 
 set(ICON_FILES resources/icons/hicolor/scalable/app/${META_PROJECT_NAME}.svg)
 set(PNG_ICON_PATH "${CMAKE_CURRENT_SOURCE_DIR}/resources/icons/hicolor/scalable/app/${META_PROJECT_NAME}.png")