1 files changed, 3 insertions, 1 deletions
diff --git a/attr.c b/attr.c
index 72b5011..999935f 100644
--- a/attr.c
+++ b/attr.c
@@ -5,9 +5,11 @@
  * This translation unit implements operations on thread attribute objects.
  */
 
+#include <errno.h>
+#include <string.h>
+
 #include "pthread.h"
 #include "implement.h"
-#include <string.h>
 
 static int
 is_attr(const pthread_attr_t *attr)