diff --git a/isobusfs/isobusfs_cmn_dh.c b/isobusfs/isobusfs_cmn_dh.c
index 84fed94..b557958 100644
--- a/isobusfs/isobusfs_cmn_dh.c
+++ b/isobusfs/isobusfs_cmn_dh.c
@@ -3,6 +3,7 @@
 
 #include <errno.h>
 #include <string.h>
+#include <time.h>
 #include <unistd.h>
 
 #include "isobusfs_cmn.h"
diff --git a/isobusfs/isobusfs_srv_cm.c b/isobusfs/isobusfs_srv_cm.c
index b8bbb1d..2fe8cf2 100644
--- a/isobusfs/isobusfs_srv_cm.c
+++ b/isobusfs/isobusfs_srv_cm.c
@@ -22,6 +22,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 #include <unistd.h>
 
 #include <linux/kernel.h>