diff --git a/automake.spec b/automake.spec
index 7afd19d..143c308 100644
--- a/automake.spec
+++ b/automake.spec
@@ -3,7 +3,7 @@
 Summary:    A GNU tool for automatically creating Makefiles
 Name:       automake
 Version:    %{api_version}.1
-Release:    13%{?dist}
+Release:    14%{?dist}
 License:    GPLv2+ and GFDL
 Group:      Development/Tools
 Source:     ftp://ftp.gnu.org/gnu/automake/automake-%{version}.tar.xz
@@ -20,8 +20,9 @@ Patch2:     %{name}-%{version}-non-existing-m4-dir.patch
 URL:        http://www.gnu.org/software/automake/
 Requires:   autoconf >= 2.65
 
-# temporarily? fix this requirement (#919810)
+# requirements not detected automatically (#919810)
 Requires:   perl(Thread::Queue)
+Requires:   perl(threads)
 
 BuildRequires:  autoconf >= 2.65
 BuildRequires:  automake
@@ -106,6 +107,10 @@ fi
 %{_mandir}/man1/*
 
 %changelog
+* Tue Apr 02 2013 Pavel Raiskup <praiskup@redhat.com> - 1.13.1-14
+- fix another requirement on perl package which may cause problems in future,
+  thanks to Paul Horwath (#924938)
+
 * Mon Mar 18 2013 Pavel Raiskup <praiskup@redhat.com> - 1.13.1-13
 - remove old build dependency comment
 - fix bogus dates in changelog