diff --git a/ci/test-nightly.sh b/ci/test-nightly.sh
index 1a87c5b107..3f80d09a3e 100755
--- a/ci/test-nightly.sh
+++ b/ci/test-nightly.sh
@@ -27,6 +27,7 @@ cargo_install_unless cargo-cov cargo cov --help
 
 # Generate coverage data and report via unit-test suite.
 _ cargo cov clean
+_ cargo cov build --all
 _ cargo cov test --lib
 _ cargo cov report