diff --git a/src/nvim/lua/treesitter.c b/src/nvim/lua/treesitter.c
index 5d3599920e..4c39cb332f 100644
--- a/src/nvim/lua/treesitter.c
+++ b/src/nvim/lua/treesitter.c
@@ -545,7 +545,8 @@ static int parser_parse(lua_State *L)
                                        .progress_callback = on_parser_progress };
       new_tree = ts_parser_parse_with_options(p, old_tree, input, parse_options);
     } else {
-      new_tree = ts_parser_parse(p, old_tree, input);
+      // Tree-sitter retains parse options after use, so we must explicitly reset them here.
+      new_tree = ts_parser_parse_with_options(p, old_tree, input, (TSParseOptions) { 0 });
     }
 
     break;