diff --git a/gray.1 b/gray.1
index 9b44c2c..97da05c 100644
--- a/gray.1
+++ b/gray.1
@@ -1,6 +1,6 @@
 .TH GRAY 1
 .SH NAME
-gray \- A quasi-optical beam-tracing code
+gray \- A quasi-optical beam-tracing code for EC waves in tokamaks
 .SH SYNOPSIS
 .B gray
 [\fB\-hnqvV\fR]