diff --git a/.gitignore b/.gitignore
index 9f825c9f3..a67ff3f50 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@ COOJA.testlog
 *.nrf52dk
 *.openmote-cc2538
 *.sky
+*.firmware
 *.srf06-cc26xx
 *.zoul