diff --git a/tests/pde/BoundaryTest.cpp b/tests/pde/BoundaryTest.cpp
index ab22a765f1dc1de37b6b9880505ce0b4ee172bb3..17e6b05a3815621c94360ecc2700bd9c5be7a512 100644
--- a/tests/pde/BoundaryTest.cpp
+++ b/tests/pde/BoundaryTest.cpp
@@ -48,7 +48,7 @@
 
 #include <cmath>
 
-using namespace walberla;
+namespace walberla {
 
 
 
@@ -437,3 +437,9 @@ int main( int argc, char** argv )
    logging::Logging::printFooterOnStream();
    return EXIT_SUCCESS;
 }
+}
+
+int main( int argc, char* argv[] )
+{
+  return walberla::main( argc, argv );
+}