diff --git a/.github/workflows/check-nixf-tidy.yml b/.github/workflows/check-nixf-tidy.yml
index de74ae8b5372..481ae2df4c31 100644
--- a/.github/workflows/check-nixf-tidy.yml
+++ b/.github/workflows/check-nixf-tidy.yml
@@ -107,7 +107,7 @@ jobs:
                   echo "$errors"
                 else
                   # just print in plain text
-                  echo "$errors" | sed 's/^:://'
+                  echo "${errors/::/}"
                   echo # add one empty line
                 fi
                 failedFiles+=("$dest")