diff --git a/ext/gd/config.m4 b/ext/gd/config.m4
index 5ccc5938d07..cd8011df482 100644
--- a/ext/gd/config.m4
+++ b/ext/gd/config.m4
@@ -312,6 +312,7 @@ dnl These are always available with bundled library
   AC_DEFINE(HAVE_GD_IMAGEELLIPSE,     1, [ ])
   AC_DEFINE(HAVE_GD_FONTCACHESHUTDOWN,1, [ ])
   AC_DEFINE(HAVE_GD_DYNAMIC_CTX_EX,   1, [ ])
+  AC_DEFINE(HAVE_GD_GIF_CTX,          1, [ ])
 
 dnl Make sure the libgd/ is first in the include path
   GDLIB_CFLAGS="-DHAVE_LIBPNG"