diff --git a/.github/workflows/lint-changed-files.yaml b/.github/workflows/lint-changed-files.yaml
index f3723a067..41c531921 100644
--- a/.github/workflows/lint-changed-files.yaml
+++ b/.github/workflows/lint-changed-files.yaml
@@ -32,6 +32,7 @@ jobs:
 
       - name: Extract and lint files changed by this PR
         run: |
+          Sys.setenv("LINTR_ERROR_ON_LINT" = TRUE)
           files <- gh::gh("GET https://api.github.com/repos/r-lib/lintr/pulls/${{ github.event.pull_request.number }}/files")
           changed_files <- purrr::map_chr(files, "filename")
           all_files <- list.files(recursive = TRUE)