diff --git a/tools/Makefile.unix b/tools/Makefile.unix
index 0d6ebd1990..ba5ebe5708 100644
--- a/tools/Makefile.unix
+++ b/tools/Makefile.unix
@@ -117,7 +117,7 @@ LINKLIBS = $(patsubst staging/%,%,$(NUTTXLIBS))
 # Export tool definitions
 
 MKEXPORT= tools/mkexport.sh
-MKEXPORT_ARGS = -w$(CONFIG_CYGWIN_WINTOOL) -t "$(TOPDIR)"
+MKEXPORT_ARGS = -w$(CONFIG_CYGWIN_WINTOOL) -t "$(TOPDIR)" -b "$(BOARD_DIR)"
 
 ifneq ($(CONFIG_BUILD_FLAT),y)
 MKEXPORT_ARGS += -u
diff --git a/tools/mkexport.sh b/tools/mkexport.sh
index e8f3bd9011..c10e9170a7 100755
--- a/tools/mkexport.sh
+++ b/tools/mkexport.sh
@@ -39,6 +39,7 @@ unset TOPDIR
 unset LIBLIST
 unset TGZ
 unset APPDIR
+unset BOARDDIR
 
 USRONLY=n
 WINTOOL=n
@@ -50,6 +51,10 @@ while [ ! -z "$1" ]; do
     shift
     APPDIR="$1"
     ;;
+  -b )
+    shift
+    BOARDDIR="$1"
+    ;;
   -d )
     set -x
     ;;
@@ -201,6 +206,12 @@ cp "${TOPDIR}/tools/incdir.c" "${EXPORTDIR}/tools/."
 
 cp -f "${TOPDIR}/binfmt/libelf/gnu-elf.ld" "${EXPORTDIR}/scripts/."
 
+# Copy the board config script
+
+if [ -f "${BOARDDIR}/scripts/Config.mk" ]; then
+  cp -f "${BOARDDIR}/scripts/Config.mk" "${EXPORTDIR}/scripts/."
+fi
+
 # Is there a linker script in this configuration?
 
 if [ "X${USRONLY}" != "Xy" ]; then