diff --git a/zerostoragecaptcha.cpp b/zerostoragecaptcha.cpp
index ec6bb89..2c8bbc0 100644
--- a/zerostoragecaptcha.cpp
+++ b/zerostoragecaptcha.cpp
@@ -288,20 +288,20 @@ void ZeroStorageCaptcha::generateAnswer(int length)
 
 //////////////////////////
 
-constexpr const int      TIME_TOKEN_SIZE = 5;
-constexpr const int      TIMER_TO_CHANGE_TOKEN_MSECS = 90000; // 1,5 min
-constexpr const int      KEY_STRING_SIZE = 32;
+constexpr const int TIME_TOKEN_SIZE = 5;
+constexpr const int TIMER_TO_CHANGE_TOKEN_MSECS = 90000; // 1,5 min
+constexpr const int KEY_STRING_SIZE = 32;
 
 namespace ZeroStorageCaptchaService {
 
-QTimer*                           TimeToken::m_updater = nullptr;
-QString                           TimeToken::m_current;
-QString                           TimeToken::m_prev;
+QTimer*                     TimeToken::m_updater = nullptr;
+QString                     TimeToken::m_current;
+QString                     TimeToken::m_prev;
 
-QMutex                            TokenManager::m_usedTokensMtx;
-QMap<QString, QSet<quint64>>      TokenManager::m_usedTokens;
-bool                              TokenManager::m_caseSensitive = false;
-QString                           TokenManager::m_key = nullptr;
+QMutex                      TokenManager::m_usedTokensMtx;
+QMap<QString, QSet<size_t>> TokenManager::m_usedTokens;
+bool                        TokenManager::m_caseSensitive = false;
+QString                     TokenManager::m_key = nullptr;
 
 void TimeToken::init()
 {