1 files changed, 1 insertions, 0 deletions

diff --git a/src/sim.c b/src/sim.c
index 2d15adf1..84025088 100644
--- a/src/sim.c
+++ b/src/sim.c
@@ -33,6 +33,7 @@
 #include <sys/types.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <unistd.h>
 
 #include "ofono.h"