diff --git a/rtc_linux.c b/rtc_linux.c
index fad95b5..aee768f 100644
--- a/rtc_linux.c
+++ b/rtc_linux.c
@@ -566,6 +566,7 @@ RTC_Linux_Finalise(void)
   /* Remove input file handler */
   if (fd >= 0) {
     SCH_RemoveFileHandler(fd);
+    switch_interrupts(0);
     close(fd);
 
     /* Save the RTC data */