--- a/src/spectrum/model/spectrum-interference.h	Wed May 18 20:01:44 2011 -0400
+++ b/src/spectrum/model/spectrum-interference.h	Wed May 18 17:24:04 2011 -0700
@@ -37,6 +37,8 @@
 
 
 /**
+ * \ingroup spectrum
+ *
  * This class implements a gaussian interference model, i.e., all
  * incoming signals are added to the total interference.
  *