diff --git a/SDL2-2.0.9-khrplatform.patch b/SDL2-2.0.9-khrplatform.patch
new file mode 100644
index 0000000..b6c3927
--- /dev/null
+++ b/SDL2-2.0.9-khrplatform.patch
@@ -0,0 +1,15 @@
+diff -up SDL2-2.0.9/include/SDL_opengl_glext.h.khrplatform SDL2-2.0.9/include/SDL_opengl_glext.h
+--- SDL2-2.0.9/include/SDL_opengl_glext.h.khrplatform	2019-02-15 20:22:39.173773779 -0500
++++ SDL2-2.0.9/include/SDL_opengl_glext.h	2019-02-15 20:22:58.176399330 -0500
+@@ -469,8 +469,9 @@ GLAPI void APIENTRY glBlendEquation (GLe
+ typedef long GLsizeiptr;
+ typedef long GLintptr;
+ #else
+-typedef ptrdiff_t GLsizeiptr;
+-typedef ptrdiff_t GLintptr;
++#include <KHR/khrplatform.h>
++typedef khronos_intptr_t GLintptr;
++typedef khronos_ssize_t GLsizeiptr;
+ #endif
+ #define GL_BUFFER_SIZE                    0x8764
+ #define GL_BUFFER_USAGE                   0x8765
diff --git a/SDL2.spec b/SDL2.spec
index 889927a..7687649 100644
--- a/SDL2.spec
+++ b/SDL2.spec
@@ -1,6 +1,6 @@
 Name:           SDL2
 Version:        2.0.9
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Cross-platform multimedia library
 
 License:        zlib and MIT
@@ -9,6 +9,8 @@ Source0:        http://www.libsdl.org/release/%{name}-%{version}.tar.gz
 Source1:        SDL_config.h
 
 Patch0:         multilib.patch
+# ptrdiff_t is not the same as khronos defines on 32bit arches
+Patch1:         SDL2-2.0.9-khrplatform.patch
 
 BuildRequires:  alsa-lib-devel
 BuildRequires:  audiofile-devel
@@ -131,6 +133,9 @@ rm -vf %{buildroot}%{_libdir}/*.la
 %{_libdir}/lib*.a
 
 %changelog
+* Fri Feb 15 2019 Tom Callaway <spot@fedoraproject.org> - 2.0.9-3
+- use khrplatform defines, not ptrdiff_t
+
 * Thu Jan 31 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.0.9-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild