diff --git a/src/games/snake.cpp b/src/games/snake.cpp
index 562b710..869c8f4 100644
--- a/src/games/snake.cpp
+++ b/src/games/snake.cpp
@@ -26,7 +26,7 @@ Snake::Snake()
  * @param myledmatrix pointer to LEDMatrix object, need to provide gridAddPixel(x, y, col), gridFlush()
  * @param mylogger pointer to UDPLogger object, need to provide a function logString(message)
  */
-Snake::Snake(LEDMatrix * matrix, UDPLogger * logger)
+Snake::Snake(LEDMatrix *matrix, UDPLogger *logger)
 {
     _logger = logger;
     _ledmatrix = matrix;
@@ -58,7 +58,7 @@ void Snake::loopCycle()
  */
 void Snake::ctrlUp()
 {
-    if ((system_get_time() / 1000) > _lastButtonClick + DEBOUNCE_TIME && _gameState == GAME_STATE_RUNNING)
+    if (((system_get_time() / 1000) > (_lastButtonClick + DEBOUNCE_TIME)) && (_gameState == GAME_STATE_RUNNING) && (_userDirection != DIRECTION_UP))
     {
         _logger->log_string("Snake: UP");
         _userDirection = DIRECTION_DOWN; // need to swap direction as field is rotated 180deg
@@ -72,7 +72,7 @@ void Snake::ctrlUp()
  */
 void Snake::ctrlDown()
 {
-    if ((system_get_time() / 1000) > _lastButtonClick + DEBOUNCE_TIME && _gameState == GAME_STATE_RUNNING)
+    if (((system_get_time() / 1000) > (_lastButtonClick + DEBOUNCE_TIME)) && (_gameState == GAME_STATE_RUNNING) && (_userDirection != DIRECTION_DOWN))
     {
         _logger->log_string("Snake: DOWN");
         _userDirection = DIRECTION_UP; // need to swap direction as field is rotated 180deg
@@ -86,7 +86,7 @@ void Snake::ctrlDown()
  */
 void Snake::ctrlRight()
 {
-    if ((system_get_time() / 1000) > _lastButtonClick + DEBOUNCE_TIME && _gameState == GAME_STATE_RUNNING)
+    if (((system_get_time() / 1000) > (_lastButtonClick + DEBOUNCE_TIME)) && (_gameState == GAME_STATE_RUNNING) && (_userDirection != DIRECTION_RIGHT))
     {
         _logger->log_string("Snake: RIGHT");
         _userDirection = DIRECTION_LEFT; // need to swap direction as field is rotated 180deg
@@ -100,7 +100,7 @@ void Snake::ctrlRight()
  */
 void Snake::ctrlLeft()
 {
-    if ((system_get_time() / 1000) > _lastButtonClick + DEBOUNCE_TIME && _gameState == GAME_STATE_RUNNING)
+    if (((system_get_time() / 1000) > (_lastButtonClick + DEBOUNCE_TIME)) && (_gameState == GAME_STATE_RUNNING) && (_userDirection != DIRECTION_LEFT))
     {
         _logger->log_string("Snake: LEFT");
         _userDirection = DIRECTION_RIGHT; // need to swap direction as field is rotated 180deg