diff --git a/.gitignore b/.gitignore
index 2d20cb1897..b5010dfd14 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,8 +11,9 @@ build/
 build-*/
 docs/genrst/
 
-# Test failure outputs
+# Test failure outputs and intermediate artefacts
 tests/results/*
+tests/ports/unix/ffi_lib.so
 
 # Python cache files
 __pycache__/