diff --git a/gamestate.cpp b/gamestate.cpp
index 53efc18..e0a9764 100644
--- a/gamestate.cpp
+++ b/gamestate.cpp
@@ -448,13 +448,14 @@ bool GameState::isColumnMoveValid(const PlayingCard& cardToMove, int columnId) {
 void GameState::ensureColumnRevealed(int columnId)
 {
     assert(columnId >= 0 && columnId < 7);
+    auto& columnStack = m_columns[columnId];
 
     // Nothing to reveal
     if (m_columns[columnId].isEmpty())
         return;
 
     // Get the last column slot
-    ColumnSlot *col = m_columns[columnId].last();
+    ColumnSlot *col = columnStack.last();
 
     // If it's already revealed, there's nothing to do
     if (col->isRevealed())
@@ -462,6 +463,7 @@ void GameState::ensureColumnRevealed(int columnId)
 
     // First slot in the column must always be revealed, reveal it
     col->reveal();
+    qDebug() << "Revealed card " << col->card()->toString() << " in column " << columnId;
 }
 
 QList<PlayingCard *> GameState::drawPile() const