diff --git a/OndselSolver/LDUSpMat.h b/OndselSolver/LDUSpMat.h
index fe4240c..5965a24 100644
--- a/OndselSolver/LDUSpMat.h
+++ b/OndselSolver/LDUSpMat.h
@@ -19,7 +19,7 @@ namespace MbD {
         FColDsptr basicSolvewithsaveOriginal(SpMatDsptr spMat, FColDsptr fullCol, bool saveOriginal) override;
         void decomposesaveOriginal(FMatDsptr fullMat, bool saveOriginal);
         void decomposesaveOriginal(SpMatDsptr spMat, bool saveOriginal);
-        FColDsptr forAndBackSubsaveOriginal(FColDsptr fullCol, bool saveOriginal);
+        FColDsptr forAndBackSubsaveOriginal(FColDsptr fullCol, bool saveOriginal) override;
         double getmatrixArowimaxMagnitude(int i) override;
         void forwardSubstituteIntoL() override;
         void backSubstituteIntoDU() override;
diff --git a/OndselSolver/PosICNewtonRaphson.cpp b/OndselSolver/PosICNewtonRaphson.cpp
index b894656..0c84dfc 100644
--- a/OndselSolver/PosICNewtonRaphson.cpp
+++ b/OndselSolver/PosICNewtonRaphson.cpp
@@ -97,7 +97,7 @@ bool PosICNewtonRaphson::isConverged()
 void PosICNewtonRaphson::handleSingularMatrix()
 {
 	nSingularMatrixError++;
-	if (nSingularMatrixError = 1){
+	if (nSingularMatrixError == 1){
 		this->lookForRedundantConstraints();
 		matrixSolver = this->matrixSolverClassNew();
 	}