diff --git a/targets/nuttx-stm32f4/Makefile b/targets/nuttx-stm32f4/Makefile
index 9afc1b6c1..074227995 100644
--- a/targets/nuttx-stm32f4/Makefile
+++ b/targets/nuttx-stm32f4/Makefile
@@ -25,7 +25,7 @@ APPNAME = jerry
 ROOT_DIR = ../../..
 PRIORITY = $(CONFIG_JERRYSCRIPT_PRIORITY)
 STACKSIZE = $(CONFIG_JERRYSCRIPT_STACKSIZE)
-CFLAGS += -std=c99 -DJERRY_NDEBUG '-DCONFIG_MEM_HEAP_AREA_SIZE=$(CONFIG_JERRYSCRIPT_HEAPSIZE)'
+CFLAGS += -std=c99 -DJERRY_NDEBUG -DJERRY_JS_PARSER '-DCONFIG_MEM_HEAP_AREA_SIZE=$(CONFIG_JERRYSCRIPT_HEAPSIZE)'
 CFLAGS += -I$(ROOT_DIR)/ $(shell find $(ROOT_DIR)/jerryscript/jerry-core -type d | sed -r -e 's/^/-I/g')
 
 # Jerryscript
diff --git a/targets/nuttx-stm32f4/README.md b/targets/nuttx-stm32f4/README.md
index 01f9feac8..8f1032d32 100644
--- a/targets/nuttx-stm32f4/README.md
+++ b/targets/nuttx-stm32f4/README.md
@@ -59,6 +59,20 @@ We must set the following options:
 * Enable `Library Routines -> Standard Math library`
 * Enable `Application Configuration -> Interpreters -> JerryScript`
 
+If you get `kconfig-mconf: not found` error when you run `make menuconfig` you may have to install kconfig-frontends:
+
+```
+# assume you are in jerry-nuttx folder
+sudo apt-get install gperf flex bison libncurses-dev
+git clone https://github.com/jameswalmsley/kconfig-frontends.git
+cd kconfig-frontends
+./bootstrap
+./configure --enable-mconf
+make
+sudo make install
+sudo ldconfig
+```
+
 #### 4. Build JerryScript for NuttX
 
 ```