diff --git a/Common/DefaultOptions.h b/Common/DefaultOptions.h
index 5ff3dc5e7e2aa730e7aad7e862dde19f0039d726..6e8620042dca4afbd3ba6a4191b764333b782d6b 100644
--- a/Common/DefaultOptions.h
+++ b/Common/DefaultOptions.h
@@ -867,7 +867,7 @@ StringXNumber GeometryOptions_Number[] = {
   { F|O, "SurfaceNumbers" , opt_geometry_surfaces_num , 0. , 
     "Display surface numbers?" },
   { F|O, "SurfaceType" , opt_geometry_surface_type , 2. , 
-    "Surface display type (0=cross, 1=wireframe, 2=solid" },
+    "Surface display type (0=cross, 1=wireframe, 2=solid)" },
 
   { F|O, "Tangents" , opt_geometry_tangents , 0. ,
     "Display size of tangent vectors (in pixels)" },