diff --git a/companion/src/CMakeLists.txt b/companion/src/CMakeLists.txt
index bdfe7d900d6..bcd81d5a683 100644
--- a/companion/src/CMakeLists.txt
+++ b/companion/src/CMakeLists.txt
@@ -133,7 +133,7 @@ configure_file(${COMPANION_SRC_DIRECTORY}/translations.qrc.in ${TRANSLATIONS_QRC
 if(QT_LUPDATE_EXECUTABLE)
   add_custom_target(companion_translations
     WORKING_DIRECTORY ${COMPANION_SRC_DIRECTORY}
-    COMMAND ${QT_LUPDATE_EXECUTABLE} ${CMAKE_SOURCE_DIR} -no-obsolete -ts ${companion_TS}
+    COMMAND ${QT_LUPDATE_EXECUTABLE} ${COMPANION_SRC_DIRECTORY} -no-obsolete -ts ${companion_TS}
     )
 else()
   message(STATUS "Qt lupdate not found, 'translations' target will not be availabe.")