diff --git a/CMakeLists.txt b/CMakeLists.txt
index fe23851c4..7ddf6b89d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -153,11 +153,11 @@ if(FREECAD_LIBPACK_USE)
     ELSEIF(FREECAD_LIBPACK_CHECKFILE8X)
         set(FREECAD_LIBPACK_VERSION "8.x" CACHE STRING "Displays if the libpack has been found" FORCE)
         include(cMake/UseLibPack8x.cmake)
-        set(SWIG_EXECUTABLE ${FREECAD_LIBPACK_DIR}/tools/swigwin-1.3.40/swig.exe)
+        set(SWIG_EXECUTABLE ${FREECAD_LIBPACK_DIR}/tools/swigwin-1.3.40/swig.exe CACHE STRING "Swig" FORCE)
     ELSEIF(FREECAD_LIBPACK_CHECKFILE9X)
         set(FREECAD_LIBPACK_VERSION "9.x" CACHE STRING "Displays if the libpack has been found" FORCE)
         include(cMake/UseLibPack9x.cmake)
-        set(SWIG_EXECUTABLE ${FREECAD_LIBPACK_DIR}/tools/swigwin-2.0.11/swig.exe)
+        set(SWIG_EXECUTABLE ${FREECAD_LIBPACK_DIR}/tools/swigwin-2.0.11/swig.exe CACHE STRING "Swig" FORCE)
     ELSEIF(FREECAD_LIBPACK_CHECKCUSTOM)
         set(FREECAD_LIBPACK_VERSION "Custom" CACHE STRING "Displays if the libpack has been found" FORCE)
         include(cMake/UseLibPackCustom.cmake)