diff --git a/multilib-fix b/multilib-fix
index eafb0b7..254d84a 100755
--- a/multilib-fix
+++ b/multilib-fix
@@ -48,6 +48,10 @@ cat <<EOF
  * To avoid breaking arches not explicitly supported by Red Hat, we
  * use this indirection file *only* on known multilib arches.
  *
+ * We pay attention to include _only_ the original multilib-unclean
+ * header file.  Including any other system-header file could cause
+ * unpredictable include-ordering issues (rhbz#1412274, comment #16).
+ *
  * Note: this may well fail if user tries to use gcc's -I- option.
  * But that option is deprecated anyway.
  */