diff --git a/man3/scanf.3 b/man3/scanf.3
index 666d4edf7..68d4e1879 100644
--- a/man3/scanf.3
+++ b/man3/scanf.3
@@ -43,6 +43,12 @@
 .\"	incorporated from the GNU C library documentation ((C) The
 .\"	Free Software Foundation); other parts substantially rewritten.
 .\"
+.\" FIXME
+.\" The glibc 2.7 release announcement says:
+.\"     Implement 'm' modifier for scanf.  Add stricter C99/SUS compliance
+.\"     by not recognizing 'a' as a modifier when those specs are requested.
+.\" These changes need to be documented.
+.\"
 .TH SCANF 3  2007-07-26 "GNU" "Linux Programmer's Manual"
 .SH NAME
 scanf, fscanf, sscanf, vscanf, vsscanf, vfscanf \- input format conversion