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-rw-r--r--c/src/libmisc/serdbg/serdbgio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/c/src/libmisc/serdbg/serdbgio.c b/c/src/libmisc/serdbg/serdbgio.c
index d44fa7f9fa..57a10d8e20 100644
--- a/c/src/libmisc/serdbg/serdbgio.c
+++ b/c/src/libmisc/serdbg/serdbgio.c
@@ -28,6 +28,7 @@
#include <rtems.h>
#include <rtems/libio_.h>
#include <errno.h>
+#include <unistd.h> /* close */
#include <stdio.h>
#include <fcntl.h>
#include <termios.h>