diff --git a/meta-zephyr-core/classes/zephyr.bbclass b/meta-zephyr-core/classes/zephyr.bbclass
index 5b71bda..4f4c88d 100644
--- a/meta-zephyr-core/classes/zephyr.bbclass
+++ b/meta-zephyr-core/classes/zephyr.bbclass
@@ -2,7 +2,7 @@ inherit terminal
 inherit python3native
 
 PYTHONPATH="${STAGING_DIR_HOST}${libdir}/${PYTHON_DIR}/site-packages"
-DEPENDS += "python3-pyelftools-native python3-pyyaml-native python3-pykwalify-native"
+DEPENDS += "python3-pyelftools-native python3-pyyaml-native python3-pykwalify-native ninja-native"
 
 OE_TERMINAL_EXPORTS += "HOST_EXTRACFLAGS HOSTLDFLAGS TERMINFO CROSS_CURSES_LIB CROSS_CURSES_INC"
 HOST_EXTRACFLAGS = "${BUILD_CFLAGS} ${BUILD_LDFLAGS}"
@@ -12,6 +12,7 @@ CROSS_CURSES_INC = '-DCURSES_LOC="<curses.h>"'
 TERMINFO = "${STAGING_DATADIR_NATIVE}/terminfo"
 
 KCONFIG_CONFIG_COMMAND ??= "menuconfig"
+KCONFIG_CONFIG_ROOTDIR ??= "${B}"
 ZEPHYR_BOARD ?= "${MACHINE}"
 
 # qemuboot writes into IMGDEPLOYDIR, force to write to DEPLOY_DIR_IMAGE
@@ -28,20 +29,24 @@ python () {
 EXTRA_OECMAKE:append = " -DZEPHYR_MODULES=${ZEPHYR_MODULES}"
 
 python do_menuconfig() {
-    os.chdir(d.getVar('ZEPHYR_SRC_DIR', True))
-    configdir = d.getVar('ZEPHYR_SRC_DIR', True) + '/outdir/' + d.getVar('BOARD', True)
+    import shutil
+
+    config = d.getVar('KCONFIG_CONFIG_ROOTDIR', True) + '/zephyr/' + '.config'
+    configorig = d.getVar('KCONFIG_CONFIG_ROOTDIR', True) + '/zephyr/' + '.config.orig'
+
     try:
-        mtime = os.path.getmtime(configdir +"/.config")
+        mtime = os.path.getmtime(config)
+        shutil.copy(config, configorig)
     except OSError:
         mtime = 0
 
-    oe_terminal("${SHELL} -c \"ZEPHYR_BASE=%s make BOARD=%s %s; if [ \$? -ne 0 ]; then echo 'Command failed.'; \
+    oe_terminal("sh -c \"ninja %s; if [ \\$? -ne 0 ]; then echo 'Command failed.'; \
                 printf 'Press any key to continue... '; \
-                read r; fi\"" % (d.getVar('ZEPHYR_BASE', True), d.getVar('BOARD', True),d.getVar('KCONFIG_CONFIG_COMMAND', True)),
-                d.getVar('PN', True) + ' Configuration', d)
+                read r; fi\"" % d.getVar('KCONFIG_CONFIG_COMMAND'), \
+                d.getVar('PN') + ' Configuration', d)
 
     try:
-        newmtime = os.path.getmtime(configdir +"/.config")
+        newmtime = os.path.getmtime(config)
     except OSError:
         newmtime = 0
 
@@ -51,7 +56,7 @@ python do_menuconfig() {
 }
 do_menuconfig[depends] += "ncurses-native:do_populate_sysroot"
 do_menuconfig[nostamp] = "1"
-do_menuconfig[dirs] = "${B}"
+do_menuconfig[dirs] = "${KCONFIG_CONFIG_ROOTDIR}"
 addtask menuconfig after do_configure
 
 python do_devshell:prepend () {