diff --git a/unittest/python/test_self_adjoint_eigen_solver.py b/unittest/python/test_self_adjoint_eigen_solver.py
index bc2670d104f8152af79209d6f652f3ffcfbbed3b..a919ebf477e7fc5dc184a7cf786f4c73c9d6e235 100644
--- a/unittest/python/test_self_adjoint_eigen_solver.py
+++ b/unittest/python/test_self_adjoint_eigen_solver.py
@@ -13,4 +13,4 @@ es = eigenpy.SelfAdjointEigenSolver(A)
 V = es.eigenvectors()
 D = es.eigenvalues()
 
-assert eigenpy.is_approx(A.dot(V),V.dot(np.diag(D)))
+assert eigenpy.is_approx(A.dot(V),V.dot(np.diag(D)),1e-6)