diff --git a/proxyface.spec.in b/proxyface.spec.in
index 5f4728d..0d9235f 100644
--- a/proxyface.spec.in
+++ b/proxyface.spec.in
@@ -6,7 +6,7 @@ License: LGPL
 Group: Development/Libraries/C++
 URL: https://dev.swisssign.com/projects/@PACKAGENAME@
 Source0: %{name}-%{version}.tar.gz
-BuildRequires: subversion gcc-c++ doxygen graphviz texlive automake autoconf libtool make libproxy-devel
+BuildRequires: subversion gcc-c++ doxygen texlive automake autoconf libtool make libproxy-devel
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
 %if 0%{?fedora} || 0%{?rhel_version} || 0%{?centos_version}
 BuildRequires: cppunit-devel qt-devel