diff --git a/.travis.yml b/.travis.yml
index 093e11f3..4b633e2a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,5 +16,5 @@ before_install:
 - ./scripts/dr.sh "cd app; ./scripts/check_indentation.sh"
 
 script:
-- ./scripts/dr.sh "test -d app/build-travis && rm -rf app/build-travis; mkdir app/build-travis; cd app/build-travis; cmake -GNinja ../ -DBEM_ENABLE_TESTING=OFF; ninja"
+- ./scripts/dr.sh "test -d app/build-travis && rm -rf app/build-travis; mkdir app/build-travis; cd app/build-travis; cmake -GNinja ../ -DBEM_ENABLE_TESTING=ON; ninja"
 - ./scripts/dr.sh "cd app/build-travis; ctest -N; ctest -V"
diff --git a/include/constrained_matrix.h b/include/constrained_matrix.h
index 92b8a1bb..ae3bcd8c 100644
--- a/include/constrained_matrix.h
+++ b/include/constrained_matrix.h
@@ -96,7 +96,7 @@ void ConstrainedOperator<VEC,MATRIX>::vmult(VEC &dst, const VEC &src) const
   //        std::cout<<i<<" ("<<this_mpi_process<<")  "<<loc_src(i)<<std::endl;
 
   matrix.vmult(dst, src);
-  dst.compress(VectorOperation::insert);
+  // dst.compress(VectorOperation::insert);
   // IndexSet dummy(dst.locally_owned_elements());
 
   for (unsigned int i=0; i<src.size(); ++i)