diff --git a/src/plugins/lda-sieve/lda-sieve-plugin.c b/src/plugins/lda-sieve/lda-sieve-plugin.c
index 1435b1be5fee5c76ccc9e4bd4ceb4cf15e0b77fd..979976f0b6b28f1b43dbb87f384ff6d57ba8b657 100644
--- a/src/plugins/lda-sieve/lda-sieve-plugin.c
+++ b/src/plugins/lda-sieve/lda-sieve-plugin.c
@@ -184,7 +184,7 @@ static void lda_sieve_duplicate_flush(const struct sieve_script_env *senv)
 
 static const char *
 lda_sieve_result_amend_log_message(const struct sieve_script_env *senv,
-				   enum log_type log_type,
+				   enum log_type log_type ATTR_UNUSED,
 				   const char *message)
 {
 	struct mail_deliver_context *mdctx = senv->script_context;
@@ -192,9 +192,6 @@ lda_sieve_result_amend_log_message(const struct sieve_script_env *senv,
 	string_t *str;
 	const char *error;
 
-	if (log_type == LOG_TYPE_DEBUG)
-		return message;
-
 	table = mail_deliver_ctx_get_log_var_expand_table(mdctx, message);
 
 	str = t_str_new(256);