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Diffstat (limited to 'rts/eventlog/EventLogWriter.c')
-rw-r--r--rts/eventlog/EventLogWriter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/rts/eventlog/EventLogWriter.c b/rts/eventlog/EventLogWriter.c
index 9f6f487d8e..4b486926a7 100644
--- a/rts/eventlog/EventLogWriter.c
+++ b/rts/eventlog/EventLogWriter.c
@@ -82,7 +82,7 @@ initEventLogFileWriter(void)
char *event_log_filename = outputFileName();
/* Open event log file for writing. */
- if ((event_log_file = __rts_fopen(event_log_filename, "wb")) == NULL) {
+ if ((event_log_file = __rts_fopen(event_log_filename, "wb+")) == NULL) {
sysErrorBelch(
"initEventLogFileWriter: can't open %s", event_log_filename);
stg_exit(EXIT_FAILURE);