diff --git a/jerry-core/CMakeLists.txt b/jerry-core/CMakeLists.txt
index d60195849c..b33115d3b2 100644
--- a/jerry-core/CMakeLists.txt
+++ b/jerry-core/CMakeLists.txt
@@ -80,8 +80,8 @@ project (JerryCore CXX C ASM)
  # Platform-specific
   # Linux
   # Nuttx
-   math(EXPR MEM_HEAP_AREA_SIZE_16K "16 * 1024")
-   set(DEFINES_JERRY_NUTTX CONFIG_MEM_HEAP_AREA_SIZE=${MEM_HEAP_AREA_SIZE_16K})
+   math(EXPR MEM_HEAP_AREA_SIZE_80K "80 * 1024")
+   set(DEFINES_JERRY_NUTTX CONFIG_MEM_HEAP_AREA_SIZE=${MEM_HEAP_AREA_SIZE_80K})
   # MCU
    # stm32f3
     math(EXPR MEM_HEAP_AREA_SIZE_16K "16 * 1024")