diff --git a/tools/check_repo_art.py b/tools/check_repo_art.py
index d0577b3..fee7f3f 100644
--- a/tools/check_repo_art.py
+++ b/tools/check_repo_art.py
@@ -38,7 +38,7 @@
 # which other gates already cover.
 SHOWN_DIRS = ("docs/art",)
 
-EM_DASH = "—"
+EM_DASH = "\u2014"
 
 
 def _rel(path: Path) -> str: