diff --git a/cddlib.patch b/cddlib.patch
new file mode 100644
index 0000000..613775f
--- /dev/null
+++ b/cddlib.patch
@@ -0,0 +1,74 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2020-09-19 11:39:47.110726857 +0200
+
+To fix the CDDPREFIX yes-or-no conundrum, cddlib 0.94k has introduced
+new unique locations for use inside <>. Adjust gfan.
+
+---
+ src/app_librarytest.cpp |    9 ++-------
+ src/gfanlib_zcone.cpp   |    9 ++-------
+ src/lp_cdd.cpp          |   12 +++---------
+ 3 files changed, 7 insertions(+), 23 deletions(-)
+
+Index: gfan0.6.2/src/app_librarytest.cpp
+===================================================================
+--- gfan0.6.2.orig/src/app_librarytest.cpp
++++ gfan0.6.2/src/app_librarytest.cpp
+@@ -8,13 +8,8 @@
+ #include "gfanapplication.h"
+ #include "gfanlib.h"
+ #include "printer.h"
+-#ifdef NOCDDPREFIX
+-#include "setoper.h"
+-#include "cdd.h"
+-#else
+-#include "cdd/setoper.h"
+-#include "cdd/cdd.h"
+-#endif
++#include <cddlib/setoper.h>
++#include <cddlib/cdd.h>
+ #include <iostream>
+ #include <fstream>
+ using namespace gfan;
+Index: gfan0.6.2/src/gfanlib_zcone.cpp
+===================================================================
+--- gfan0.6.2.orig/src/gfanlib_zcone.cpp
++++ gfan0.6.2/src/gfanlib_zcone.cpp
+@@ -12,13 +12,8 @@
+ #include <sstream>
+ 
+ //extern "C"{
+-#ifdef NOCDDPREFIX
+-#include "setoper.h"
+-#include "cdd.h"
+-#else
+-#include "cdd/setoper.h"
+-#include "cdd/cdd.h"
+-#endif
++#include <cddlib/setoper.h>
++#include <cddlib/cdd.h>
+ //}
+ 
+ namespace gfan{
+Index: gfan0.6.2/src/lp_cdd.cpp
+===================================================================
+--- gfan0.6.2.orig/src/lp_cdd.cpp
++++ gfan0.6.2/src/lp_cdd.cpp
+@@ -1,14 +1,8 @@
+ #include "lp_cdd.h"
+ //extern "C"{
+-#ifdef NOCDDPREFIX
+-#include "setoper.h"
+-#include "cdd.h"
+-#include "cdd_f.h"
+-#else
+-#include "cdd/setoper.h"
+-#include "cdd/cdd.h"
+-#include "cdd/cdd_f.h"
+-#endif
++#include <cddlib/setoper.h>
++#include <cddlib/cdd.h>
++#include <cddlib/cdd_f.h>
+ //}
+ #include "termorder.h"
+ #include "printer.h"
diff --git a/gfan.changes b/gfan.changes
index 7e9b09b..d506374 100644
--- a/gfan.changes
+++ b/gfan.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Sep 19 10:05:47 UTC 2020 - Jan Engelhardt <jengelh@inai.de>
+
+- Add cddlib.patch
+
 -------------------------------------------------------------------
 Sat Aug 24 16:14:41 UTC 2019 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/gfan.spec b/gfan.spec
index 35a5433..9633749 100644
--- a/gfan.spec
+++ b/gfan.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gfan
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -27,6 +27,7 @@ URL:            http://home.imf.au.dk/jensen/software/gfan/gfan.html
 Source:         http://home.imf.au.dk/jensen/software/gfan/%name%version.tar.gz
 Patch1:         gfan-automake.diff
 Patch2:         gfan-warnings.diff
+Patch3:         cddlib.patch
 BuildRequires:  automake
 BuildRequires:  cddlib-devel
 BuildRequires:  gcc-c++