diff --git a/src/vnet/interface/monitor.c b/src/vnet/interface/monitor.c
index 6d79154..3ae1fd2 100644
--- a/src/vnet/interface/monitor.c
+++ b/src/vnet/interface/monitor.c
@@ -90,12 +90,14 @@
 
       tsd = ts[spin] - ts[spin ^ 1];
       vlib_cli_output (
-	vm, "rx: %Upps %Ubps tx: %Upps %Ubps%c", format_base10,
-	(u32) ((vrx[spin].packets - vrx[spin ^ 1].packets) / tsd),
-	format_base10, (u32) ((vrx[spin].bytes - vrx[spin ^ 1].bytes) / tsd),
+	vm, "rx: %Upps %Ubps tx: %Upps %Ubps", format_base10,
+	(u64) ((vrx[spin].packets - vrx[spin ^ 1].packets) / tsd),
 	format_base10,
-	(u32) ((vtx[spin].packets - vtx[spin ^ 1].packets) / tsd),
-	format_base10, (u32) ((vtx[spin].bytes - vtx[spin ^ 1].bytes) / tsd));
+	(u64) (8 * (vrx[spin].bytes - vrx[spin ^ 1].bytes) / tsd),
+	format_base10,
+	(u64) ((vtx[spin].packets - vtx[spin ^ 1].packets) / tsd),
+	format_base10,
+	(u64) (8 * (vtx[spin].bytes - vtx[spin ^ 1].bytes) / tsd));
     }
 
 done: