diff --git a/highlight/include/tree_sitter/highlight.h b/highlight/include/tree_sitter/highlight.h
index 34bccbc6..b77fb9b7 100644
--- a/highlight/include/tree_sitter/highlight.h
+++ b/highlight/include/tree_sitter/highlight.h
@@ -43,6 +43,7 @@ enum TSHighlightValue {
   TSHighlightValueTypeBuiltin,
   TSHighlightValueVariable,
   TSHighlightValueVariableBuiltin,
+  TSHighlightValueVariableParameter,
   TSHighlightValueUnknown,
 };