diff --git a/usr.bin/vmstat/vmstat.8 b/usr.bin/vmstat/vmstat.8
index 5362a0454a1..dbd6cebd3fd 100644
--- a/usr.bin/vmstat/vmstat.8
+++ b/usr.bin/vmstat/vmstat.8
@@ -66,9 +66,6 @@ The options are as follows:
 When used with
 .Fl i ,
 include statistics about interrupts that have never been generated.
-If specified twice, also show interrupts that are not connected to any
-device; if specified thrice, also list stray entries for each
-interrupt.
 .It Fl c
 Repeat the display
 .Ar count