diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index a37a222..ec4d4c2 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -237,7 +237,7 @@
 	self->data_offset = f_header.data.offset;
 	self->data_size   = f_header.data.size;
 
-	lseek(fd, self->data_offset + self->data_size, SEEK_SET);
+	lseek(fd, self->data_offset, SEEK_SET);
 
 	self->frozen = 1;