diff --git a/libp11.changes b/libp11.changes
index b1f7048..67e138c 100644
--- a/libp11.changes
+++ b/libp11.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Nov 20 06:13:41 UTC 2011 - coolo@suse.com
+
+- add libtool as buildrequire to avoid implicit dependency
+
 -------------------------------------------------------------------
 Tue Jan 11 18:46:59 CET 2011 - sbrabec@suse.cz
 
diff --git a/libp11.spec b/libp11.spec
index b4168cc..9aaf1dd 100644
--- a/libp11.spec
+++ b/libp11.spec
@@ -28,7 +28,7 @@ Summary:        Library Implementing a Small Layer on Top of PKCS#11 API
 Source:         %{name}-%{version}.tar.bz2
 Source1:        %{name}-rpmlintrc
 Source2:        baselibs.conf
-BuildRequires:  doxygen openssl-devel pkg-config zlib-devel
+BuildRequires:  doxygen libtool openssl-devel pkg-config zlib-devel
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -42,15 +42,6 @@ Libp11 source code includes the official header files (version 2.20)
 and thus is "derived from the RSA Security Inc. PKCS #11 Cryptographic
 Token Interface (Cryptoki)".
 
-Authors:
---------
-    Andreas Jellinghaus
-    Kevin Stefanik
-    Ludovic Rousseau
-    Nils Larsch
-    Olaf Kirch
-    Stef Hoeben
-
 %package -n libp11-1
 License:        LGPLv2.1+
 Group:          Productivity/Security
@@ -67,15 +58,6 @@ Libp11 source code includes the official header files (version 2.20)
 and thus is "derived from the RSA Security Inc. PKCS #11 Cryptographic
 Token Interface (Cryptoki)".
 
-Authors:
---------
-    Andreas Jellinghaus
-    Kevin Stefanik
-    Ludovic Rousseau
-    Nils Larsch
-    Olaf Kirch
-    Stef Hoeben
-
 %package devel
 License:        LGPLv2.1+
 Group:          Development/Libraries/C and C++
@@ -93,15 +75,6 @@ Libp11 source code include the official header files (version 2.20) and
 thus is "derived from the RSA Security Inc. PKCS #11 Cryptographic
 Token Interface (Cryptoki)".
 
-Authors:
---------
-    Andreas Jellinghaus
-    Kevin Stefanik
-    Ludovic Rousseau
-    Nils Larsch
-    Olaf Kirch
-    Stef Hoeben
-
 %prep
 %setup -q
 tr -d \\r <doc/nonpersistent/wiki.out/trac.css >doc/nonpersistent/wiki.out/trac.css.unix