diff --git a/math/distribution/NormalN.h b/math/distribution/NormalN.h
index bb332c4..b30c4d9 100644
--- a/math/distribution/NormalN.h
+++ b/math/distribution/NormalN.h
@@ -91,7 +91,12 @@ namespace Distribution {
                 Assert::notEqual(numElements, 0, "data is empty, thats not enough for getting the distribution!");
 
                 const Eigen::MatrixXd centered = data.rowwise() - mean.transpose();
-                const Eigen::MatrixXd cov = (centered.adjoint() * centered) / double(data.rows() - 1);
+                Eigen::MatrixXd cov = (centered.adjoint() * centered) / double(data.rows() - 1);
+
+                //this is a hack
+                if(cov(2,2) < 0.1){
+                    cov(2,2) = 0.1;
+                }
 
                 return NormalDistributionN(mean, cov);
         }