diff --git a/benchmarks/3d/sphere_hexa.geo b/benchmarks/3d/sphere_hexa.geo
index 783ecb16bc350c5013ed4c9cef5ba31b3a7534e2..4b05646320af8564a828e6a0877e22f2574f021d 100644
--- a/benchmarks/3d/sphere_hexa.geo
+++ b/benchmarks/3d/sphere_hexa.geo
@@ -15,7 +15,7 @@ Line(3) = {4,5};
 Line(4) = {5,2};
 Line Loop(5) = {4,1,2,3};
 Plane Surface(6) = {5};
-Extrude Surface {6, {0.0,0.0,2*r1}};
+Extrude {0.0,0.0,2*r1} { Surface{6}; }
 
 // exterior shell
 Point(102) = {r2,r2,-r2,l};