diff -r a1e00acc5986 src/devices/wifi/mac-low.cc
--- a/src/devices/wifi/mac-low.cc	Thu May 27 08:34:16 2010 +0200
+++ b/src/devices/wifi/mac-low.cc	Fri May 28 11:27:01 2010 +1000
@@ -1401,7 +1401,7 @@
   WifiMacTrailer fcs;
   packet->AddTrailer (fcs);
 
-  struct SnrTag tag;
+  SnrTag tag;
   tag.Set (rtsSnr);
   packet->AddPacketTag (tag);
 
@@ -1480,7 +1480,7 @@
   WifiMacTrailer fcs;
   packet->AddTrailer (fcs);
 
-  struct SnrTag tag;
+  SnrTag tag;
   tag.Set (dataSnr);
   packet->AddPacketTag (tag);