diff --git a/legacy/eio/src/lib/eio_dir.c b/legacy/eio/src/lib/eio_dir.c
index d14098b5b2..6977d2d2f4 100644
--- a/legacy/eio/src/lib/eio_dir.c
+++ b/legacy/eio/src/lib/eio_dir.c
@@ -18,7 +18,6 @@
  */
 
 #define _FILE_OFFSET_BITS 64
-#define _GNU_SOURCE
 
 #ifdef HAVE_CONFIG_H
 # include "config.h"
diff --git a/legacy/eio/src/lib/eio_file.c b/legacy/eio/src/lib/eio_file.c
index 1900c0aaa1..653ef9893e 100644
--- a/legacy/eio/src/lib/eio_file.c
+++ b/legacy/eio/src/lib/eio_file.c
@@ -20,7 +20,6 @@
  */
 
 #define _FILE_OFFSET_BITS 64
-#define _GNU_SOURCE
 
 #ifdef HAVE_CONFIG_H
 # include "config.h"