1 files changed, 3 insertions, 2 deletions

diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt
index a849889e6092..6521681e7838 100644
--- a/Documentation/trace/kprobetrace.txt
+++ b/Documentation/trace/kprobetrace.txt
@@ -25,9 +25,10 @@ probe events via /sys/kernel/debug/tracing/events/kprobes/<EVENT>/filter.
 
 Synopsis of kprobe_events
 -------------------------
-  p[:EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS]   : Set a probe
-  r[:EVENT] SYMBOL[+0] [FETCHARGS]              : Set a return probe
+  p[:[GRP/]EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS]     : Set a probe
+  r[:[GRP/]EVENT] SYMBOL[+0] [FETCHARGS]                : Set a return probe
 
+ GRP            : Group name. If omitted, use "kprobes" for it.
  EVENT          : Event name. If omitted, the event name is generated
                   based on SYMBOL+offs or MEMADDR.
  SYMBOL[+offs]  : Symbol+offset where the probe is inserted.