diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9393d49..36ea39a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ if (INSTALL_Q3DMASC_PLUGIN)
 	project( Q3DMASC_PLUGIN )
 
 	AddPlugin( NAME ${PROJECT_NAME} )
-	set(Q3DMASC_PLUGIN_VERSION "0.2")
+	set(Q3DMASC_PLUGIN_VERSION "0.3")
 
 	include( CMakePolicies NO_POLICY_SCOPE )
 
diff --git a/q3DMASCClassifier.cpp b/q3DMASCClassifier.cpp
index 553bc13..18028a0 100644
--- a/q3DMASCClassifier.cpp
+++ b/q3DMASCClassifier.cpp
@@ -275,7 +275,8 @@ bool Classifier::classify(	const Feature::Source::Set& featureSources,
 		QCoreApplication::processEvents();
 	}
 
-	ConfusionMatrix *confusionMatrix = new ConfusionMatrix(*classifSFBackup, *classificationSF);
+	if (classifSFBackup != nullptr)
+		ConfusionMatrix *confusionMatrix = new ConfusionMatrix(*classifSFBackup, *classificationSF);
 
 	return success;
 }