diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 333d8941ce4d..bcd510d9b434 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -2173,6 +2173,7 @@ int cmd_inject(int argc, const char **argv)
 			.finished_init	= perf_event__repipe_op2_synth,
 			.compressed	= perf_event__repipe_op4_synth,
 			.auxtrace	= perf_event__repipe_auxtrace,
+			.dont_split_sample_group = true,
 		},
 		.input_name  = "-",
 		.samples = LIST_HEAD_INIT(inject.samples),
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 1a4f10de29ff..c8f7634f9846 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1497,6 +1497,9 @@ static int deliver_sample_group(struct evlist *evlist,
 	int ret = -EINVAL;
 	struct sample_read_value *v = sample->read.group.values;
 
+	if (tool->dont_split_sample_group)
+		return deliver_sample_value(evlist, tool, event, sample, v, machine);
+
 	sample_read_group__for_each(v, sample->read.group.nr, read_format) {
 		ret = deliver_sample_value(evlist, tool, event, sample, v,
 					   machine);
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index c957fb849ac6..62bbc9cec151 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -85,6 +85,7 @@ struct perf_tool {
 	bool		namespace_events;
 	bool		cgroup_events;
 	bool		no_warn;
+	bool		dont_split_sample_group;
 	enum show_feature_header show_feat_hdr;
 };