diff --git a/.github/ci-lint-exec.py b/.github/ci-lint-exec.py
index f0a6adcabca..73749accd6f 100755
--- a/.github/ci-lint-exec.py
+++ b/.github/ci-lint-exec.py
@@ -38,6 +38,8 @@ def main():
     extra_env = []
     if os.environ["GITHUB_EVENT_NAME"] == "pull_request":
         extra_env = ["--env", "LINT_CI_IS_PR=1"]
+    if os.environ["GITHUB_EVENT_NAME"] != "pull_request" and os.environ["GITHUB_REPOSITORY"] == "bitcoin/bitcoin":
+        extra_env = ["--env", "LINT_CI_SANITY_CHECK_COMMIT_SIG=1"]
 
     run([
         "docker",
diff --git a/ci/lint/06_script.sh b/ci/lint/06_script.sh
index 536427f1b45..82e499c29ba 100755
--- a/ci/lint/06_script.sh
+++ b/ci/lint/06_script.sh
@@ -18,7 +18,7 @@ fi
 
 RUST_BACKTRACE=1 cargo run --manifest-path "./test/lint/test_runner/Cargo.toml"
 
-if [ "$CIRRUS_REPO_FULL_NAME" = "bitcoin/bitcoin" ] && [ "${LINT_CI_IS_PR}" = "" ] ; then
+if [ "${LINT_CI_SANITY_CHECK_COMMIT_SIG}" = "1" ] ; then
     # Sanity check only the last few commits to get notified of missing sigs,
     # missing keys, or expired keys. Usually there is only one new merge commit
     # per push on the master branch and a few commits on release branches, so