diff --git a/nk-dump.c b/nk-dump.c
index 298e025..3a9c5ee 100644
--- a/nk-dump.c
+++ b/nk-dump.c
@@ -1,7 +1,9 @@
+#include <err.h>
 #include <fcntl.h>
 #include <gelf.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/types.h>
 #include <unistd.h>