diff --git a/.gitignore b/.gitignore
index f6b6ed79d51..a7572e3fe90 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,6 +41,7 @@ src_ext/seq/
 src_ext/sha/
 src_ext/spdx_licenses/
 src_ext/stdlib-shims/
+src_ext/swhid_core/
 src_ext/topkg/
 Opam.Runtime.*/
 *.tar.bz2