diff --git a/src/driver/slbt_amain.c b/src/driver/slbt_amain.c
index 073f540..3e2cf3a 100644
--- a/src/driver/slbt_amain.c
+++ b/src/driver/slbt_amain.c
@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <string.h>
+#include <errno.h>
 #include <slibtool/slibtool.h>
 #include "slibtool_driver_impl.h"