diff --git a/Library/Homebrew/dev-cmd/contributions.rb b/Library/Homebrew/dev-cmd/contributions.rb
index 91a1ff26395c1..df933b6fa2d79 100755
--- a/Library/Homebrew/dev-cmd/contributions.rb
+++ b/Library/Homebrew/dev-cmd/contributions.rb
@@ -141,8 +141,8 @@ def scan_repositories(repos, person, args)
 
       data[repo] = {
         commits:       GitHub.repo_commit_count_for_user(repo_full_name, person),
-        coauthorships: git_log_trailers_cmd(T.must(repo_path), "Co-authored-by", person, args),
-        signoffs:      git_log_trailers_cmd(T.must(repo_path), "Signed-off-by", person, args),
+        coauthorships: git_log_trailers_cmd(T.must(repo_path), person, "Co-authored-by", args),
+        signoffs:      git_log_trailers_cmd(T.must(repo_path), person, "Signed-off-by", args),
       }
     end