diff --git a/gno.orca.h b/gno.orca.h
index 6855cb1..3fbe4d2 100644
--- a/gno.orca.h
+++ b/gno.orca.h
@@ -4,6 +4,7 @@
 #include <stdio.h>
 
 #define fsetbinary(f) (f->_flag &= ~_IOTEXT)
+#define fsettext(f) (f->_flag |= _IOTEXT)
 
 
-#endif
\ No newline at end of file
+#endif