diff --git a/examples/helmholtzflow/nacelle3D/main.cpp b/examples/helmholtzflow/nacelle3D/main.cpp
index 999b1c19ff5af18eb7ef3c75a35589e18ebcc66b..ebb5badd4f4a250357bfaa1576be04b16214e108 100644
--- a/examples/helmholtzflow/nacelle3D/main.cpp
+++ b/examples/helmholtzflow/nacelle3D/main.cpp
@@ -405,7 +405,7 @@ int main(int argc, char **argv)
 
   // Solve DDM
   double tolerence = 1e-6;
-  int maxIter = 1000;
+  int maxIter = 10000;
   formulation.pre();
   formulation.solve("gmres", tolerence, maxIter, true);