diff --git a/connd/main.cpp b/connd/main.cpp
index e51a22a..eb67b81 100644
--- a/connd/main.cpp
+++ b/connd/main.cpp
@@ -23,6 +23,7 @@
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 #include "qconnectionagent.h"
 #include "connectiond_adaptor.h"