diff --git a/src/config/config.c b/src/config/config.c
index 5512d67e80..fd376cc8ad 100644
--- a/src/config/config.c
+++ b/src/config/config.c
@@ -7,12 +7,12 @@
  * directory or online at http://www.openafs.org/dl/license10.html
  */
 
-#include <sys/types.h>
 #include <sys/types.h>
 #include <sys/file.h>
 #include <sys/time.h>
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 #include <errno.h>
 
 #include "AFS_component_version_number.c"