diff --git a/opm/autodiff/StandardWell_impl.hpp b/opm/autodiff/StandardWell_impl.hpp
index a99451e4a..c3f50c022 100644
--- a/opm/autodiff/StandardWell_impl.hpp
+++ b/opm/autodiff/StandardWell_impl.hpp
@@ -331,7 +331,7 @@ namespace Opm
             return primary_variables_evaluation_[GFrac];
         }
 
-        if (has_solvent && compIdx == contiSolventEqIdx) {
+        if (has_solvent && compIdx == (unsigned)contiSolventEqIdx) {
             return primary_variables_evaluation_[SFrac];
         }
 
diff --git a/tutorials/sim_tutorial1.cpp b/tutorials/sim_tutorial1.cpp
index 193826403..eabd41e26 100644
--- a/tutorials/sim_tutorial1.cpp
+++ b/tutorials/sim_tutorial1.cpp
@@ -87,7 +87,9 @@ try
     /// We open an output file stream for the output
     /// \snippet tutorial1.cpp output stream
     /// \internal [output stream]
+#ifdef DISABLE_OUTPUT
     std::ofstream vtkfile("tutorial1.vtu");
+#endif
     /// \internal [output stream]
     /// \endinternal
     /// \page tutorial1