diff --git a/lib/antlr/parse.go b/lib/antlr/parse.go
index 0e1cbdb4..6a44a52f 100644
--- a/lib/antlr/parse.go
+++ b/lib/antlr/parse.go
@@ -87,6 +87,7 @@ func visit(tree antlr.Tree) ([]Event, error) {
 		return processRenameTable(ctx)
 	case
 		*generated.CreateIndexContext,
+		*generated.DropIndexContext,
 		*generated.CreateEventContext,
 		*generated.DropEventContext,
 		*generated.EmptyStatement_Context,