diff --git a/tetris/custom_classes.cpp b/tetris/custom_classes.cpp
index e8465d7..dae80e6 100644
--- a/tetris/custom_classes.cpp
+++ b/tetris/custom_classes.cpp
@@ -63,6 +63,7 @@ void TetrisBlock::specialAction( int code ) {
     switch ( code ) {
     case PIECE_ACTION_UPDATE_COLOR:
         setColors();
+        // fallthrough
     case PIECE_ACTION_UPDATE_BLOCK:
         if ( g_show_3d )
             setTexture( "block.png" );