diff --git a/ladspa-devel.spec b/ladspa-devel.spec
index 5258fc6..cafa01b 100644
--- a/ladspa-devel.spec
+++ b/ladspa-devel.spec
@@ -1,7 +1,7 @@
 #
-# spec file for package ladspa-devel (Version 1.13)
+# spec file for package ladspa-devel
 #
-# Copyright (c) 2010 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -21,7 +21,7 @@
 Name:           ladspa-devel
 Summary:        Include Files mandatory for Development
 Version:        1.13
-Release:        3
+Release:        6
 License:        LGPLv2.1+
 Group:          Development/Libraries/C and C++
 Source:         ladspa_sdk_1.13.tar.bz2
diff --git a/ladspa.changes b/ladspa.changes
index 976a5f3..889cae3 100644
--- a/ladspa.changes
+++ b/ladspa.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Nov 13 09:12:07 UTC 2011 - coolo@suse.com
+
+- add libtool as explicit buildrequire to avoid implicit dependency from prjconf
+
 -------------------------------------------------------------------
 Sun May  1 17:35:27 UTC 2011 - toddrme2178@gmail.com
 
diff --git a/ladspa.spec b/ladspa.spec
index e951999..ee5114d 100644
--- a/ladspa.spec
+++ b/ladspa.spec
@@ -1,7 +1,7 @@
 #
-# spec file for package ladspa (Version 1.13)
+# spec file for package ladspa
 #
-# Copyright (c) 2010 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -20,6 +20,7 @@
 
 Name:           ladspa
 BuildRequires:  fdupes fftw3-devel flac-devel gcc-c++ ladspa-devel libsndfile-devel pkgconfig xorg-x11-util-devel
+BuildRequires:  libtool
 %define AMB_version 0.6.1
 %define FIL_version 0.3.0
 %define MCP_version 0.4.0
@@ -38,7 +39,7 @@ BuildRequires:  fdupes fftw3-devel flac-devel gcc-c++ ladspa-devel libsndfile-de
 %define vocoder_version 0.3
 Summary:        The Linux Audio Developer's Simple Plug-In API
 Version:        1.13
-Release:        3
+Release:        9
 License:        LGPLv2.1+
 Group:          Productivity/Multimedia/Sound/Utilities
 AutoReq:        on