diff --git a/racing.cpp b/racing.cpp
index 61f8718b..01c0a6ad 100644
--- a/racing.cpp
+++ b/racing.cpp
@@ -73,7 +73,7 @@ struct ghost {
   charstyle cs;
   int result;
   int checksum;
-  time_t timestamp;
+  long long timestamp;
   vector<ghostmoment> history;
   };