diff --git a/configure.in b/configure.in
index 0a4fd7973..967ce1529 100644
--- a/configure.in
+++ b/configure.in
@@ -432,7 +432,7 @@ AC_SUBST(SWSCALE_LDFLAGS)
 AC_SUBST(AVCODEC_LDFLAGS)
 AC_SUBST(AVFORMAT_LDFLAGS)
 AC_SUBST(AVUTIL_LDFLAGS)
-AM_CONDITIONAL([HAVE_FFMPEG], [test "$with_ffmpeg" != "no"])
+AM_CONDITIONAL([HAVE_FFMPEG], [test "$with_ffmpeg" = "yes"])