diff --git a/xine-lib.spec b/xine-lib.spec
index e95a56c..3aad4b6 100644
--- a/xine-lib.spec
+++ b/xine-lib.spec
@@ -196,6 +196,7 @@ touch -r m4/optimizations.m4.stamp m4/optimizations.m4
 %build
 export FFMPEG_CFLAGS=" " FFMPEG_LIBS=" "
 export FFMPEG_POSTPROC_CFLAGS=" " FFMPEG_POSTPROC_LIBS=" "
+export FFMPEG_UTIL_CFLAGS=" " FFMPEG_UTIL_LIBS=" "
 export SDL_CFLAGS="$(sdl-config --cflags)" SDL_LIBS="$(sdl-config --libs)"
 # Keep list of options in mostly the same order as ./configure --help.
 %configure \