diff --git a/.github/workflows/ci-rust.yml b/.github/workflows/ci-rust.yml
index f84e357..957f66d 100644
--- a/.github/workflows/ci-rust.yml
+++ b/.github/workflows/ci-rust.yml
@@ -76,7 +76,7 @@ jobs:
 
       - name: Raw lcov export smoke test (functions and branches)
         run: |
-          ./pleasew --plain_output cover //test/rust/branches:branches_test 2>&1 | tee cover.log
+          ./pleasew --plain_output cover --rerun //test/rust/branches:branches_test 2>&1 | tee cover.log
           f="plz-out/bin/test/rust/branches/branches_test.lcov"
           grep -q '^SF:test/rust/branches/branches\.rs$' "$f"
           grep -Eq '^FNDA:0,.*unused$' "$f"