diff --git a/benchmarks/Grid_su3_expr.cc b/benchmarks/Grid_su3_expr.cc
new file mode 100644
index 00000000..e20bcef4
--- /dev/null
+++ b/benchmarks/Grid_su3_expr.cc
@@ -0,0 +1,11 @@
+#include <Grid.h>
+
+using namespace std;
+using namespace Grid;
+using namespace Grid::QCD;
+
+void su3_test_mult_expression(LatticeColourMatrix &z, LatticeColourMatrix &x,LatticeColourMatrix &y)
+{
+  z=x*y;
+}
+