diff --git a/pcbnew/dialogs/panel_setup_rules_help_md.h b/pcbnew/dialogs/panel_setup_rules_help_md.h
index 2b56161f09..c3ef147ec0 100644
--- a/pcbnew/dialogs/panel_setup_rules_help_md.h
+++ b/pcbnew/dialogs/panel_setup_rules_help_md.h
@@ -24,6 +24,7 @@ _HKI( "### Top-level Clauses\n"
 "### Constraint Types\n"
 "\n"
 " * annular\\_width\n"
+" * assertion\n"
 " * clearance\n"
 " * connection\\_width\n"
 " * courtyard_clearance\n"