diff --git a/samples/bpf/bpf_helpers.h b/samples/bpf/bpf_helpers.h
index 217c8d507f2e8d6a6fae5a958c1edc1d3be3e99d..cbc52df165b483bf9f08ff535ca285190c3bc2a4 100644
--- a/samples/bpf/bpf_helpers.h
+++ b/samples/bpf/bpf_helpers.h
@@ -37,7 +37,9 @@ static int (*bpf_clone_redirect)(void *ctx, int ifindex, int flags) =
 	(void *) BPF_FUNC_clone_redirect;
 static int (*bpf_redirect)(int ifindex, int flags) =
 	(void *) BPF_FUNC_redirect;
-static int (*bpf_perf_event_output)(void *ctx, void *map, int index, void *data, int size) =
+static int (*bpf_perf_event_output)(void *ctx, void *map,
+				    unsigned long long flags, void *data,
+				    int size) =
 	(void *) BPF_FUNC_perf_event_output;
 static int (*bpf_get_stackid)(void *ctx, void *map, int flags) =
 	(void *) BPF_FUNC_get_stackid;