diff --git a/dlls/vbscript/parser.y b/dlls/vbscript/parser.y
index a28717ff763..df2c72da959 100644
--- a/dlls/vbscript/parser.y
+++ b/dlls/vbscript/parser.y
@@ -85,7 +85,7 @@ static statement_t *link_statements(statement_t*,statement_t*);
 
 %lex-param { parser_ctx_t *ctx }
 %parse-param { parser_ctx_t *ctx }
-%pure-parser
+%define api.pure
 %start Program
 
 %union {