diff --git a/src/osfp.c b/src/osfp.c
index c43041f..7210b60 100644
--- a/src/osfp.c
+++ b/src/osfp.c
@@ -1,4 +1,5 @@
 #include <sys/fcntl.h>
+#include <unistd.h>
 
 #include "cJSON.h"
 
diff --git a/src/osfp_common.c b/src/osfp_common.c
index 6f6f596..d2a76d3 100644
--- a/src/osfp_common.c
+++ b/src/osfp_common.c
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <sys/stat.h>
 #include <sys/fcntl.h>
 
 #include "osfp_common.h"