1 files changed, 2 insertions, 1 deletions

diff --git a/parse-events.h b/parse-events.h
index 32a8ff0..49de6bb 100644
--- a/parse-events.h
+++ b/parse-events.h
@@ -444,7 +444,8 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
 int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
                              int long_size);
 
-int pevent_parse_event(struct pevent *pevent, char *buf, unsigned long size, char *sys);
+int pevent_parse_event(struct pevent *pevent, const char *buf,
+                       unsigned long size, const char *sys);
 
 int pevent_register_event_handler(struct pevent *pevent, int id, char *sys_name, char *event_name,
                                   pevent_event_handler_func func, void *context);