diff --git a/.drone.yml b/.drone.yml
index 2f69c8c..0e61c03 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,4 +9,9 @@ steps:
   commands:
   - export TAR="/bin/tar"
   - Rscript -e 'devtools::install_github("jimhester/lintr")'
-  - Rscript -e 'quit(save="no", status=length(lintr::lint_dir(path=".", pattern=rex::rex(".", one_of("Rr"), maybe("md"), end))))'
+  # Lint the document, printing output.
+  - Rscript -e 'lintr::lint_dir(path=".", pattern=rex::rex(".", one_of("Rr"),
+  maybe("md"), end))'
+  # Return non-zero exit code (no output is printed).
+  - Rscript -e 'quit(save="no", status=length(lintr::lint_dir(path=".",
+  pattern=rex::rex(".", one_of("Rr"), maybe("md"), end))))'