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-rw-r--r--sesman/tools/xcon.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sesman/tools/xcon.c b/sesman/tools/xcon.c
index 4150d6af..4b3248b6 100644
--- a/sesman/tools/xcon.c
+++ b/sesman/tools/xcon.c
@@ -19,6 +19,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
#include <sys/types.h>
#include <X11/Xlib.h>