diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index d51abd2e78652c46a958e86587d9b827983f43d9..3b2de6eb33763b0ab1a23195529fda8d6367eb1d 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -39,6 +39,7 @@ struct symbol_conf symbol_conf = {
 	.cumulate_callchain	= true,
 	.show_hist_headers	= true,
 	.symfs			= "",
+	.event_group		= true,
 };
 
 static enum dso_binary_type binary_type_symtab[] = {