diff --git a/doc/guides/contributing/pull-requests.md b/doc/guides/contributing/pull-requests.md
index 935c8d0f9b3b99..1820fae69fb4df 100644
--- a/doc/guides/contributing/pull-requests.md
+++ b/doc/guides/contributing/pull-requests.md
@@ -417,7 +417,7 @@ project are able to respond.
 
 For non-trivial changes, Pull Requests must be left open for at least 48 hours.
 Sometimes changes take far longer to review, or need more specialized review
-from subject matter experts. When in doubt, do not rush.
+from subject-matter experts. When in doubt, do not rush.
 
 Trivial changes, typically limited to small formatting changes or fixes to
 documentation, may be landed within the minimum 48 hour window.