diff --git a/.gitignore b/.gitignore
index d4e9acd5..a7f1d43b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -126,3 +126,4 @@ tests/custom/*/*/*.map
 tests/custom/*/*/*.memfile
 tests/custom/crt0/*.a
 /pipelined/regression/sd_model.log
+external