diff --git a/misc.c b/misc.c
--- a/misc.c
+++ b/misc.c
@@ -268,7 +268,8 @@ static void Load_NAME(void)
 }
 
 static const SaveLoadGlobVarList _date_desc[] = {
-	    SLEG_VAR(_date,                  SLE_UINT16),
+	SLEG_CONDVAR(_date,                  SLE_FILE_U16 | SLE_VAR_U32,  0,  30),
+	SLEG_CONDVAR(_date,                  SLE_UINT32, 31, SL_MAX_VERSION),
 	    SLEG_VAR(_date_fract,            SLE_UINT16),
 	    SLEG_VAR(_tick_counter,          SLE_UINT16),
 	    SLEG_VAR(_vehicle_id_ctr_day,    SLE_UINT16),