diff --git a/lua-luaexpat.changes b/lua-luaexpat.changes
index 134d62d..ff1f859 100644
--- a/lua-luaexpat.changes
+++ b/lua-luaexpat.changes
@@ -4,6 +4,7 @@ Thu Jul 13 20:11:42 UTC 2017 - tchvatal@suse.com
 - Drop not needed luaexpat-lib.patch
 - Fix detection of some lua based items for 5.2 and 5.3
 - Switch to multibuild specfile to build against all lua flavors
+- Fix build on lua5.3
 
 -------------------------------------------------------------------
 Wed May 28 17:31:19 UTC 2014 - seiler@b1-systems.de
diff --git a/lua-luaexpat.spec b/lua-luaexpat.spec
index 1020fd7..8772d82 100644
--- a/lua-luaexpat.spec
+++ b/lua-luaexpat.spec
@@ -48,7 +48,7 @@ make %{?_smp_mflags} \
     LUA_V=%{lua_version} \
     LUA_CDIR="%{lua_archdir}" \
     LUA_INC="-I%{lua_incdir}" \
-    CFLAGS="%{optflags}"
+    CFLAGS="%{optflags} -DLUA_32BITS"
 
 %install
 %makeinstall \