diff --git a/hoot-core/src/main/cpp/hoot/core/schema/ScoreMatrix.h b/hoot-core/src/main/cpp/hoot/core/schema/ScoreMatrix.h
index 35827fd..b4ec428 100644
--- a/hoot-core/src/main/cpp/hoot/core/schema/ScoreMatrix.h
+++ b/hoot-core/src/main/cpp/hoot/core/schema/ScoreMatrix.h
@@ -56,6 +56,7 @@ template<typename _type>
class ScoreMatrix
{
public:
+
ScoreMatrix() { }
ScoreMatrix(int width, int height) { resize(width, height); }
@@ -138,6 +139,7 @@ public:
QString toTableString() const;
private:
+
struct Entry
{
size_t i, j;