diff --git a/0013-Use-NULL-instead-of-0.patch b/0013-Use-NULL-instead-of-0.patch
new file mode 100644
index 0000000..79a4c8d
--- /dev/null
+++ b/0013-Use-NULL-instead-of-0.patch
@@ -0,0 +1,34 @@
+From 920601828a12a4802b8f5d4cb77ef913793c6b17 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ralf=20Cors=C3=A9pius?= <corsepiu@fedoraproject.org>
+Date: Tue, 7 Feb 2017 23:49:32 +0100
+Subject: [PATCH 13/13] Use NULL instead of '\0'
+
+---
+ src/3ds/SoStream.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/3ds/SoStream.cpp b/src/3ds/SoStream.cpp
+index 1b5f96d..7f07a27 100644
+--- a/src/3ds/SoStream.cpp
++++ b/src/3ds/SoStream.cpp
+@@ -176,7 +176,7 @@ do { \
+   if (!gotNum) { setBadBit(); return FALSE; } \
+  \
+   char *ce; \
+-  s = '\0'; \
++  s = NULL; \
+   _convertType_ tempVal = _convertFunc_(buf, &ce, 0); \
+  \
+   if (ce != s) \
+@@ -273,7 +273,7 @@ do { \
+ gotAll: \
+   \
+   char *ce; \
+-  s = '\0'; \
++  s = NULL; \
+   double tempVal = _convertFunc_(buf, &ce); \
+  \
+   if (ce != s) \
+-- 
+2.9.3
+
diff --git a/Coin3.spec b/Coin3.spec
index 41866c3..dfe398e 100644
--- a/Coin3.spec
+++ b/Coin3.spec
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2010-2016 Ralf Corsepius, Ulm, Germany.
+# Copyright (c) 2010-2017 Ralf Corsepius, Ulm, Germany.
 # This file and all modifications and additions to the pristine
 # package are under the same license as the package itself.
 #
@@ -13,7 +13,7 @@
 Summary: High-level 3D visualization library
 Name: Coin3
 Version: 3.1.3
-Release: 18%{?dist}
+Release: 19%{?dist}
 
 # https://bitbucket.org/Coin3D/coin/wiki/Home tells BSD,
 # but the tarball is GPLv2
@@ -41,6 +41,7 @@ Patch9: 0009-Convert-to-utf-8.patch
 Patch10: 0010-GCC-4.8.0-fixes.patch
 Patch11: 0011-Fix-SoCamera-manpage.patch
 Patch12: 0012-memhandler-initialization.patch
+Patch13: 0013-Use-NULL-instead-of-0.patch
 
 BuildRequires: libGLU-devel
 BuildRequires: libXext-devel
@@ -91,14 +92,7 @@ Development package for Coin3
 %patch10 -p1
 %patch11 -p1
 %patch12 -p1
-
-%if (0%{?fedora} > 20) && (0%{?fedora} < 24)
-# freetype header chaos:
-# Fedora <= 20    headers in /usr/include/freetype2/freetype
-# Fedora 21,22,23 headers in /usr/include/freetype2
-# Fedora >= 24    headers in /usr/include/freetype2/freetype
-sed -i -e 's,freetype/,,' src/glue/freetype.{h,cpp}
-%endif
+%patch13 -p1
 
 # Update doxygen configuration
 doxygen -u docs/coin.doxygen.in
@@ -217,6 +211,10 @@ fi
 %ghost %{_libdir}/pkgconfig/Coin.pc
 
 %changelog
+* Wed Feb 08 2017 Ralf Corsépius <corsepiu@fedoraproject.org> - 3.1.3-19
+- Add 0013-Use-NULL-instead-of-0.patch (Fix F26FTBFS, GCC-7.0).
+- Drop fedora < 24.
+
 * Mon Sep 05 2016 Ralf Corsépius <corsepiu@fedoraproject.org> - 3.1.3-18
 - BR: /usr/bin/perl (Fix F25FTBFS).