diff --git a/targets/nuttx-stm32f4/.gitignore b/targets/nuttx-stm32f4/.gitignore
new file mode 100644
index 000000000..35849a252
--- /dev/null
+++ b/targets/nuttx-stm32f4/.gitignore
@@ -0,0 +1,7 @@
+# Files generated / copied by the NuttX build
+.built
+.depend
+Make.dep
+*.c.obj
+*.o
+*.a