diff --git a/src/one-body-sample.cc b/src/one-body-sample.cc
index 2455bd5b543d03648bdf606ab988f7d44699d180..8877245a776297b6fb5394fb1f6f3d5f2d6b290d 100644
--- a/src/one-body-sample.cc
+++ b/src/one-body-sample.cc
@@ -330,14 +330,16 @@ int main(int argc, char *argv[]) {
         linearIterationStep->setSmoother(linearPresmoother, linearPostsmoother);
 
         // {{{ Transfer operators
-        std::vector<CompressedMultigridTransfer<VectorType> *> transfer_;
-        transfer_.resize(refinements);
-        for (auto &x : transfer_)
+        std::vector<CompressedMultigridTransfer<VectorType> *>
+        transferOperators;
+        transferOperators.resize(refinements);
+        for (auto &x : transferOperators)
           x = new CompressedMultigridTransfer<VectorType>;
 
         TransferOperatorAssembler<GridType> transferOperatorAssembler(grid);
-        transferOperatorAssembler.assembleOperatorPointerHierarchy(transfer_);
-        linearIterationStep->setTransferOperators(transfer_);
+        transferOperatorAssembler.assembleOperatorPointerHierarchy(
+            transferOperators);
+        linearIterationStep->setTransferOperators(transferOperators);
         // }}}
 
         typedef GenericNonlinearGS<MyBlockProblemType> NonlinearSmootherType;
@@ -369,7 +371,7 @@ int main(int argc, char *argv[]) {
         delete linearBaseSolver;
         delete linearPresmoother;
         delete linearPostsmoother;
-        for (auto &x : transfer_)
+        for (auto &x : transferOperators)
           delete x;
         delete linearIterationStep;
         delete myBlockProblem;