diff --git a/src/plugins/script/script-repo.c b/src/plugins/script/script-repo.c
index 12a326c6e..82f1c5271 100644
--- a/src/plugins/script/script-repo.c
+++ b/src/plugins/script/script-repo.c
@@ -21,9 +21,7 @@
  * script-repo.c: download and read repository file (plugins.xml.gz)
  */
 
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
-#endif
+#define _XOPEN_SOURCE 700
 
 #include <stdlib.h>
 #include <unistd.h>