diff --git a/test/freeflow/stokes/test_stokes.cc b/test/freeflow/stokes/test_stokes.cc
index 654074b4ead4c0229a72b2ba4dcec962fc37ad8a..be897dd9a850710e8cb25111cf73e95cc8d738a7 100644
--- a/test/freeflow/stokes/test_stokes.cc
+++ b/test/freeflow/stokes/test_stokes.cc
@@ -29,6 +29,7 @@ int main(int argc, char** argv)
     typedef TTAG(StokesTestProblem) ProblemTypeTag;
     return Dumux::startFromDGF<ProblemTypeTag>(argc, argv);
 #else
+#warning "No SuperLU installed. Stokes currently only works with SuperLU."
     std::cout << "No SuperLU installed. Stokes currently only works with SuperLU." << std::endl;
     return 1;
 #endif
diff --git a/test/freeflow/stokes2c/test_stokes2c.cc b/test/freeflow/stokes2c/test_stokes2c.cc
index e397d85da51ee9158907abff2bee447f90dacb09..4605e7f5210dc05239c127a8d7f43b37d7d73362 100644
--- a/test/freeflow/stokes2c/test_stokes2c.cc
+++ b/test/freeflow/stokes2c/test_stokes2c.cc
@@ -29,6 +29,7 @@ int main(int argc, char** argv)
     typedef TTAG(Stokes2cTestProblem) ProblemTypeTag;
     return Dumux::startFromDGF<ProblemTypeTag>(argc, argv);
 #else
+#warning "No SuperLU installed. Stokes currently only works with SuperLU."
     std::cout << "No SuperLU installed. Stokes currently only works with SuperLU." << std::endl;
     return 1;
 #endif
diff --git a/test/freeflow/stokes2cni/test_stokes2cni.cc b/test/freeflow/stokes2cni/test_stokes2cni.cc
index f8c29aca3e6c207397cf799d75e2d7b732ff468d..31f6bef8a051ec238ae536c54f59fc3df2eec9e5 100644
--- a/test/freeflow/stokes2cni/test_stokes2cni.cc
+++ b/test/freeflow/stokes2cni/test_stokes2cni.cc
@@ -29,6 +29,7 @@ int main(int argc, char** argv)
     typedef TTAG(Stokes2cniTestProblem) ProblemTypeTag;
     return Dumux::startFromDGF<ProblemTypeTag>(argc, argv);
 #else
+#warning "No SuperLU installed. Stokes currently only works with SuperLU."
     std::cout << "No SuperLU installed. Stokes currently only works with SuperLU." << std::endl;
     return 1;
 #endif