1 files changed, 1 insertions, 1 deletions
diff --git a/gramscii.h b/gramscii.h
index e6c5b77..96445d3 100644
--- a/gramscii.h
+++ b/gramscii.h
@@ -1,7 +1,7 @@
 #ifndef __GRAMSCII_H__
 #define __GRAMSCII_H__
 
-#define _POSIX_C_SOURCE 2 
+#define _POSIX_C_SOURCE 200112L
 
 #include <stdio.h>
 #include <termios.h>