diff --git a/.github/codeql/codeql-config.yml b/.github/codeql/codeql-config.yml
index 7196708b21..20b06dcc47 100644
--- a/.github/codeql/codeql-config.yml
+++ b/.github/codeql/codeql-config.yml
@@ -1,4 +1 @@
 name: "CodeQL config for the Ruby language"
-
-paths-ignore:
-  - '/ext/**/*/conftest.c'