diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 99b032a..4db5e52 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -12,6 +12,7 @@
 
 #include "util/debug.h"
 #include "util/session.h"
+#include "util/tool.h"
 
 #include <sys/types.h>
 #include <sys/prctl.h>
@@ -845,7 +846,7 @@
 		die("Unknown type of information\n");
 }
 
-static int process_sample_event(struct perf_event_ops *ops __used,
+static int process_sample_event(struct perf_tool *tool __used,
 				union perf_event *event,
 				struct perf_sample *sample,
 				struct perf_evsel *evsel __used,
@@ -864,7 +865,7 @@
 	return 0;
 }
 
-static struct perf_event_ops eops = {
+static struct perf_tool eops = {
 	.sample			= process_sample_event,
 	.comm			= perf_event__process_comm,
 	.ordered_samples	= true,