diff --git a/Electrostatics/microstrip.pro b/Electrostatics/microstrip.pro
index 22d3fe19f930f021ff2b0e61066d161c70ac4657..bddd0849c56d374bdff7c0ef969d1864ba8c978a 100644
--- a/Electrostatics/microstrip.pro
+++ b/Electrostatics/microstrip.pro
@@ -40,8 +40,8 @@
 
 Group {
   /* One starts by giving explicit meaningful names to the Physical regions
-     defined in the "microstrip.msh" mesh file. There are 2 volume regions and 3
-     surface regions in this model. */
+     defined in the "microstrip.msh" mesh file. We only use 2 volume regions and
+     2 surface regions in this model. */
 
   Air = Region[101];
   Diel1 = Region[111];