@@ -19,11 +19,11 @@
 /*!
  * @brief A protocol for classes providing hash functions.
  */
 @protocol OFHash <OFObject>
 #ifdef OF_HAVE_PROPERTIES
-@property (readonly, getter=isCalculated) BOOL calculated;
+@property (readonly, getter=isCalculated) bool calculated;
 #endif
 
 /*!
  * @brief Creates a new hash.
  *
@@ -67,7 +67,7 @@
 /*!
  * @brief Returns a boolean whether the hash has already been calculated.
  *
  * @return A boolean whether the hash has already been calculated
  */
-- (BOOL)isCalculated;
+- (bool)isCalculated;
 @end