diff --git a/0001-pkg-config-add-includedir-libzrtcpp-to-CFLAGS.patch b/0001-pkg-config-add-includedir-libzrtcpp-to-CFLAGS.patch
new file mode 100644
index 0000000..cb285a2
--- /dev/null
+++ b/0001-pkg-config-add-includedir-libzrtcpp-to-CFLAGS.patch
@@ -0,0 +1,35 @@
+From f100d9583fb0345ebe91959b9310fed3af1602db Mon Sep 17 00:00:00 2001
+X-Git-Clone: git://github.com/tmatth/ZRTPCPP
+From: Tristan Matthews <tristan.matthews@savoirfairelinux.com>
+Date: Mon, 14 Jul 2014 11:31:17 -0400
+Subject: [PATCH] pkg-config: add <includedir>/libzrtcpp to CFLAGS
+
+Also remove broken lines that are not required.
+---
+ libzrtpcpp.pc.cmake | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+diff --git a/libzrtpcpp.pc.cmake b/libzrtpcpp.pc.cmake
+index 655bd30..9676c3d 100644
+--- a/libzrtpcpp.pc.cmake
++++ b/libzrtpcpp.pc.cmake
+@@ -1,15 +1,13 @@
+ prefix=@prefix@
+ exec_prefix=@exec_prefix@
+ libdir=@libdir@
+-pkglibdir=${libdir}/@PACKAGE@
+ includedir=@includedir@
+-pkgincludedir=${includedir}/@PACKAGE@
+ 
+ Name: libzrtpcpp
+ Description: GNU ZRTP core library
+ Version: @VERSION@
+ Requires: @CRYPTOBACKEND@
+ Libs:  -L${libdir} -l@zrtplibName@
+-Cflags: -I${includedir}
++Cflags: -I${includedir} -I${includedir}/libzrtpcpp
+ 
+ 
+-- 
+2.0.0
+
diff --git a/libzrtpcpp.changes b/libzrtpcpp.changes
index d0daa1b..2fe4471 100644
--- a/libzrtpcpp.changes
+++ b/libzrtpcpp.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Oct 25 12:46:04 UTC 2014 - jengelh@inai.de
+
+- Add 0001-pkg-config-add-includedir-libzrtcpp-to-CFLAGS.patch
+  to fix downstream compilation [bso#902614]
+
 -------------------------------------------------------------------
 Mon Oct 13 09:26:17 UTC 2014 - jengelh@inai.de
 
diff --git a/libzrtpcpp.spec b/libzrtpcpp.spec
index b668931..50e6ef0 100644
--- a/libzrtpcpp.spec
+++ b/libzrtpcpp.spec
@@ -30,6 +30,7 @@ Url:            http://www.gnutelephony.org/index.php/GNU_ZRTP
 # No longer produces release tarballs since 3.x.
 Source:         %name-%version.tar.xz
 Source2:        %name.keyring
+Patch1:         0001-pkg-config-add-includedir-libzrtcpp-to-CFLAGS.patch
 BuildRequires:  cmake
 BuildRequires:  gcc-c++ >= 4.7
 BuildRequires:  pkgconfig
@@ -67,6 +68,7 @@ documentation for building applications that use libzrtpcpp.
 
 %prep
 %setup -qn ZRTPCPP
+%patch -P 1 -p1
 
 %build
 mkdir build