diff --git a/game/bag.cpp b/game/bag.cpp
index a54218d..035a453 100644
--- a/game/bag.cpp
+++ b/game/bag.cpp
@@ -43,7 +43,7 @@ Bag::Bag(const Dictionary &iDic)
 }
 
 
-unsigned int Bag::count(const Tile &iTile) const
+unsigned Bag::count(const Tile &iTile) const
 {
     map<Tile, int>::const_iterator it = m_tilesMap.find(iTile);
     if (it != m_tilesMap.end())
@@ -52,7 +52,7 @@ unsigned int Bag::count(const Tile &iTile) const
 }
 
 
-unsigned int Bag::getNbVowels() const
+unsigned Bag::getNbVowels() const
 {
     int v = 0;
 
@@ -66,7 +66,7 @@ unsigned int Bag::getNbVowels() const
 }
 
 
-unsigned int Bag::getNbConsonants() const
+unsigned Bag::getNbConsonants() const
 {
     int c = 0;
 
@@ -118,7 +118,7 @@ Tile Bag::selectRandomConsonant() const
 }
 
 
-Tile Bag::selectRandomTile(unsigned int total,
+Tile Bag::selectRandomTile(unsigned total,
                            bool onlyVowels, bool onlyConsonants) const
 {
     ASSERT(total > 0, "Not enough tiles (of the requested kind) in the bag");
diff --git a/game/bag.h b/game/bag.h
index e2d1367..b8bd7aa 100644
--- a/game/bag.h
+++ b/game/bag.h
@@ -46,16 +46,16 @@ public:
     void replaceTile(const Tile &iTile);
 
     /// Count how many tiles identical to iTile are available in the bag
-    unsigned int count(const Tile &iTile) const;
+    unsigned count(const Tile &iTile) const;
 
     /**
      * Return how many tiles/vowels/consonants are available
      * Warning: b.getNbVowels() + b.getNbConsonants() != b.getNbTiles(),
      * because of the jokers and the 'Y'.
      */
-    unsigned int getNbTiles() const  { return m_nbTiles; }
-    unsigned int getNbVowels() const;
-    unsigned int getNbConsonants() const;
+    unsigned getNbTiles() const { return m_nbTiles; }
+    unsigned getNbVowels() const;
+    unsigned getNbConsonants() const;
 
     /**
      * Return a random available tile
@@ -88,10 +88,10 @@ private:
     map<Tile, int> m_tilesMap;
 
     /// Total number of tiles in the bag
-    int m_nbTiles;
+    unsigned m_nbTiles;
 
     /// Helper method, used by the various selectRandom*() methods
-    Tile selectRandomTile(unsigned int total,
+    Tile selectRandomTile(unsigned total,
                           bool onlyVowels, bool onlyConsonants) const;
 };