diff --git a/[refs] b/[refs]
index 4a0a2d2caa71..1f2c27c41809 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9533ac6291d78cd16c4b11a15bfbb055affd76c3
+refs/heads/master: 0d0bea5ea4a0e91feff22ac5e32e14ff3a682247
diff --git a/trunk/tools/perf/util/trace-event-parse.c b/trunk/tools/perf/util/trace-event-parse.c
index eae560503086..7021dc1b0ca6 100644
--- a/trunk/tools/perf/util/trace-event-parse.c
+++ b/trunk/tools/perf/util/trace-event-parse.c
@@ -941,7 +941,8 @@ static int event_read_fields(struct event *event, struct format_field **fields)
 			if (read_expect_type(EVENT_ITEM, &token))
 				goto fail;
 
-			/* add signed type */
+			if (strtoul(token, NULL, 0))
+				field->flags |= FIELD_IS_SIGNED;
 
 			free_token(token);
 			if (read_expected(EVENT_OP, ";") < 0)