diff --git a/spectrum/src/frontends/slack/SlackUserRegistration.cpp b/spectrum/src/frontends/slack/SlackUserRegistration.cpp
index 3b06e36b..d5d868bf 100644
--- a/spectrum/src/frontends/slack/SlackUserRegistration.cpp
+++ b/spectrum/src/frontends/slack/SlackUserRegistration.cpp
@@ -83,6 +83,7 @@ std::string SlackUserRegistration::getTeamDomain(const std::string &token) {
 	rapidjson::Document resp;
 	HTTPRequest req(HTTPRequest::Get, url);
 	if (!req.execute(resp)) {
+		LOG4CXX_ERROR(logger, url);
 		LOG4CXX_ERROR(logger, req.getError());
 		return "";
 	}
@@ -90,6 +91,7 @@ std::string SlackUserRegistration::getTeamDomain(const std::string &token) {
 	rapidjson::Value &team = resp["team"];
 	if (!team.IsObject()) {
 		LOG4CXX_ERROR(logger, "No 'team' object in the reply.");
+		LOG4CXX_ERROR(logger, url);
 		LOG4CXX_ERROR(logger, req.getRawData());
 		return "";
 	}
@@ -97,6 +99,7 @@ std::string SlackUserRegistration::getTeamDomain(const std::string &token) {
 	rapidjson::Value &domain = team["domain"];
 	if (!domain.IsString()) {
 		LOG4CXX_ERROR(logger, "No 'domain' string in the reply.");
+		LOG4CXX_ERROR(logger, url);
 		LOG4CXX_ERROR(logger, req.getRawData());
 		return "";
 	}