diff --git a/opus.spec b/opus.spec
index 50ddddb..587095a 100644
--- a/opus.spec
+++ b/opus.spec
@@ -1,15 +1,18 @@
-Name:          opus
-Version:       1.2
-Release:       0.3%{?dist}
-Summary:       An audio codec for use in low-delay speech and audio communication
+Name:     opus
+Version:  1.2
+Release:  0.3%{?dist}
+Summary:  An audio codec for use in low-delay speech and audio communication
 
-Group:         System Environment/Libraries
-License:       BSD
-URL:           http://www.opus-codec.org/
-Source0:       http://downloads.xiph.org/releases/%{name}/%{name}-%{version}-beta.tar.gz
+Group:    System Environment/Libraries
+License:  BSD
+URL:      http://www.opus-codec.org/
+Source0:  http://downloads.xiph.org/releases/%{name}/%{name}-%{version}-beta.tar.gz
 # This is the final IETF Working Group RFC
-Source1:       http://tools.ietf.org/rfc/rfc6716.txt 
-Source2:       https://tools.ietf.org/html/draft-ietf-codec-opus-update-04
+Source1:  http://tools.ietf.org/rfc/rfc6716.txt 
+Source2:  https://tools.ietf.org/html/draft-ietf-codec-opus-update-04
+
+Patch0:   opus-4507637cc.patch
+BuildRequires: automake autoconf libtool
 
 BuildRequires: doxygen
 
@@ -29,10 +32,12 @@ Files for development with opus.
 
 %prep
 %setup -q -n %{name}-%{version}-beta
+%patch0 -p1 -b .ftb
 cp %{SOURCE1} .
 cp %{SOURCE2} .
 
 %build
+autoreconf -vif
 %configure --enable-custom-modes --enable-update-draft --disable-static
 
 make %{?_smp_mflags} V=1