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-rw-r--r--src/devices/machine/rtc65271.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/devices/machine/rtc65271.cpp b/src/devices/machine/rtc65271.cpp
index 5ddc59ddb5f..2d45881968b 100644
--- a/src/devices/machine/rtc65271.cpp
+++ b/src/devices/machine/rtc65271.cpp
@@ -21,6 +21,8 @@
#include "emu.h"
#include "rtc65271.h"
+#include "fileio.h"
+
/* Delay between the beginning (UIP asserted) and the end (UIP cleared and
update interrupt asserted) of the update cycle */
#define UPDATE_CYCLE_TIME attotime::from_usec(1984)