diff --git a/qse/include/qse/cmn/Array.hpp b/qse/include/qse/cmn/Array.hpp
index 8f56232c..890506cd 100644
--- a/qse/include/qse/cmn/Array.hpp
+++ b/qse/include/qse/cmn/Array.hpp
@@ -244,7 +244,7 @@ public:
 		return this->buffer[index];
 	}
 
-	T& getValueAtgetValueAt (qse_size_t index)
+	T& getValueAt (qse_size_t index)
 	{
 		QSE_ASSERT (index < this->count);
 		return this->buffer[index];
diff --git a/qse/include/qse/cmn/BinaryHeap.hpp b/qse/include/qse/cmn/BinaryHeap.hpp
index 84091698..4f04ae1e 100644
--- a/qse/include/qse/cmn/BinaryHeap.hpp
+++ b/qse/include/qse/cmn/BinaryHeap.hpp
@@ -129,9 +129,15 @@ public:
 	using ParentType::isEmpty;
 	using ParentType::getSize;
 	using ParentType::getCapacity;
+	using ParentType::getIndex;
 	using ParentType::clear;
 	using ParentType::compact;
 
+	const T& operator[] (qse_size_t index) const
+	{
+		return ParentType::getValueAt (index);
+	}
+
 	const T& getValueAt (qse_size_t index) const
 	{
 		return ParentType::getValueAt (index);