diff --git a/test/inverse.cpp b/test/inverse.cpp
index 1195bcc76..1e7b20958 100644
--- a/test/inverse.cpp
+++ b/test/inverse.cpp
@@ -73,6 +73,7 @@ template<typename MatrixType> void inverse(const MatrixType& m)
   {
     Matrix<Scalar, MatrixType::RowsAtCompileTime+1, MatrixType::RowsAtCompileTime+1, MatrixType::Options> m3;
     m3.setRandom();
+    m3.topLeftCorner(rows,rows) = m1;
     m2 = m3.template topLeftCorner<MatrixType::RowsAtCompileTime,MatrixType::ColsAtCompileTime>().inverse();
     VERIFY_IS_APPROX( (m3.template topLeftCorner<MatrixType::RowsAtCompileTime,MatrixType::ColsAtCompileTime>()), m2.inverse() );
   }