diff --git a/cmake/QtPriHelpers.cmake b/cmake/QtPriHelpers.cmake
index 2b3128ef6c3..c619a50f30f 100644
--- a/cmake/QtPriHelpers.cmake
+++ b/cmake/QtPriHelpers.cmake
@@ -323,7 +323,9 @@ function(qt_generate_module_pri_file target)
        list(APPEND module_internal_config staticlib)
     endif()
 
-    # TODO: Add the value 'ltcg' to module_internal_config if LTCG is turned on.
+    if(QT_FEATURE_ltcg)
+        list(APPEND module_internal_config ltcg)
+    endif()
 
     list(JOIN module_internal_config " " joined_module_internal_config)