diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 62f4cacf253ab6..b9db8739487dcf 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -2764,6 +2764,7 @@ process_dynamic_array_len(struct event_format *event, struct print_arg *arg,
 	if (read_expected(EVENT_DELIM, ")") < 0)
 		goto out_err;
 
+	free_token(token);
 	type = read_token(&token);
 	*tok = token;