diff --git a/src/attached_probe.cpp b/src/attached_probe.cpp
index d7905cd..adbd40c 100644
--- a/src/attached_probe.cpp
+++ b/src/attached_probe.cpp
@@ -376,7 +376,7 @@ void AttachedProbe::load_prog()
 void AttachedProbe::attach_kprobe()
 {
   int perf_event_fd = bpf_attach_kprobe(progfd_, attachtype(probe_.type),
-      eventname().c_str(), probe_.attach_point.c_str(), 0);
+      eventname().c_str(), probe_.attach_point.c_str(), 0, -1);
 
   if (perf_event_fd < 0) {
     if (probe_.orig_name != probe_.name) {