diff --git a/configure.ac b/configure.ac
index b30c03f..803ce83 100644
--- a/configure.ac
+++ b/configure.ac
@@ -219,6 +219,7 @@ PKG_CHECK_MODULES([LIBAVCODEC], [libavcodec-uninstalled], [:], [ac_cv_my_have_ff
 PKG_CHECK_MODULES([LIBAVFORMAT], [libavformat-uninstalled], [:], [ac_cv_my_have_ffmpeg=no])
 PKG_CHECK_MODULES([LIBSWSCALE], [libswscale-uninstalled], [:], [ac_cv_my_have_ffmpeg=no])
 if test "${ac_cv_my_have_ffmpeg}" = "no"; then
+  ac_cv_my_have_ffmpeg="yes"
   PKG_CHECK_MODULES([LIBAVCODEC], [libavcodec], [:], [ac_cv_my_have_ffmpeg=no])
   PKG_CHECK_MODULES([LIBAVFORMAT], [libavformat], [:], [ac_cv_my_have_ffmpeg=no])
   PKG_CHECK_MODULES([LIBSWSCALE], [libswscale], [:], [ac_cv_my_have_ffmpeg=no])