diff --git a/src/compiler/rules/metadata.h b/src/compiler/rules/metadata.h
index a43c158a..2933e679 100644
--- a/src/compiler/rules/metadata.h
+++ b/src/compiler/rules/metadata.h
@@ -13,7 +13,6 @@ enum MetadataKey {
   START_TOKEN,
   PRECEDENCE,
   IS_TOKEN,
-  DESCRIPTION,
   ASSOCIATIVITY,
 };