diff --git a/lib/isc/unix/file.c b/lib/isc/unix/file.c
index 03033ff796..7c75f841cd 100644
--- a/lib/isc/unix/file.c
+++ b/lib/isc/unix/file.c
@@ -22,6 +22,7 @@
 #include <unistd.h>            /* Required for mkstemp on NetBSD. */
 
 #include <sys/stat.h>
+#include <sys/time.h>
 
 #include <isc/file.h>
 #include <isc/string.h>