diff --git a/src/plugins/quota-clone/quota-clone-plugin.c b/src/plugins/quota-clone/quota-clone-plugin.c
index f4f6bd333f..b76a021d8d 100644
--- a/src/plugins/quota-clone/quota-clone-plugin.c
+++ b/src/plugins/quota-clone/quota-clone-plugin.c
@@ -165,7 +165,9 @@ static void quota_clone_mail_user_created(struct mail_user *user)
 
 	uri = mail_user_plugin_getenv(user, "quota_clone_dict");
 	if (uri == NULL || uri[0] == '\0') {
-		i_error("The quota_clone_dict setting is missing from configuration");
+		if (user->mail_debug) {
+			i_debug("The quota_clone_dict setting is missing from configuration");
+		}
 		return;
 	}