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-rw-r--r--usermux/mux.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/usermux/mux.c b/usermux/mux.c
index 0f955544..9c75eac5 100644
--- a/usermux/mux.c
+++ b/usermux/mux.c
@@ -22,6 +22,7 @@
#include <string.h>
#include <dirent.h>
#include <pwd.h>
+#include <sys/mman.h>
#include "usermux.h"