diff --git a/benchmarks/3d/Splere.geo b/benchmarks/3d/Sphere.geo
similarity index 94%
rename from benchmarks/3d/Splere.geo
rename to benchmarks/3d/Sphere.geo
index ad2efdc8fae7fc9a5ded1b1baf4237f33d2afb9e..2efe1e02c31f30607d108abf75c176a3ebd2bbd2 100644
--- a/benchmarks/3d/Splere.geo
+++ b/benchmarks/3d/Sphere.geo
@@ -34,5 +34,9 @@ Line Loop(25) = {-7,4,9};
 Ruled Surface(26) = {25};
 Line Loop(27) = {4,-12,6};
 Ruled Surface(28) = {27};
+
 Surface Loop(29) = {28,26,16,14,20,24,22,18};
 Complex Volume(30) = {29};
+
+Physical Volume(1) = 30;
+Physical Surface(2) = {14:28:2};