diff --git a/multilib-fix b/multilib-fix
index 54f3d9a..b1a6898 100755
--- a/multilib-fix
+++ b/multilib-fix
@@ -38,6 +38,10 @@ opt_field_separator=-
 # The solution is taken from Fedora PostgreSQL RPM package.
 print_stub ()
 {
+    # The '#else' branch here is not needed!  We never install this header on
+    # systems where this set of '#ifdef's is not enough (adding suggested e.g.
+    # in rhbz#1242873).
+
     replacement=$filename$opt_field_separator
 cat <<EOF
 /*
diff --git a/multilib-rpm-config.spec b/multilib-rpm-config.spec
index 07abeee..a05f738 100644
--- a/multilib-rpm-config.spec
+++ b/multilib-rpm-config.spec
@@ -11,7 +11,7 @@
 Summary: Multilib packaging helpers
 Name: multilib-rpm-config
 Version: 1
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: GPLv2+
 URL: https://fedoraproject.org/wiki/PackagingDrafts/MultilibTricks
 
@@ -56,6 +56,9 @@ install -m 755 -p %{SOURCE0} %{buildroot}/%{ml_fix}
 
 
 %changelog
+* Wed Jun 22 2016 Pavel Raiskup <praiskup@redhat.com> - 1-5
+- document why there is no need for '#else' in the replacement header
+
 * Mon Jun 13 2016 Pavel Raiskup <praiskup@redhat.com> - 1-4
 - use '-' as a field separator by default