diff --git a/doc/filters.texi b/doc/filters.texi
index 5dfe5a1f5b..f68b46a52a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -5992,8 +5992,7 @@ Generate various test patterns, as generated by the MPlayer test filter.
 The size of the generated video is fixed, and is 256x256.
 This source is useful in particular for testing encoding features.
 
-This source accepts an optional sequence of @var{key}=@var{value} pairs,
-separated by ":". The description of the accepted options follows.
+This source accepts the following options:
 
 @table @option
 
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index fbf2eecbf7..6746dad55b 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -685,6 +685,7 @@ int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque
         !strcmp(filter->filter->name, "lutyuv"     ) ||
         !strcmp(filter->filter->name, "lutrgb"     ) ||
         !strcmp(filter->filter->name, "mandelbrot" ) ||
+        !strcmp(filter->filter->name, "mptestsrc"  ) ||
         !strcmp(filter->filter->name, "negate"     ) ||
         !strcmp(filter->filter->name, "overlay"    ) ||
         !strcmp(filter->filter->name, "pad"        ) ||
diff --git a/libavfilter/vsrc_mptestsrc.c b/libavfilter/vsrc_mptestsrc.c
index 9f1c46f849..e2341081ce 100644
--- a/libavfilter/vsrc_mptestsrc.c
+++ b/libavfilter/vsrc_mptestsrc.c
@@ -262,12 +262,6 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
     int64_t duration = -1;
     int ret;
 
-    test->class = &mptestsrc_class;
-    av_opt_set_defaults(test);
-
-    if ((ret = (av_set_options_string(test, args, "=", ":"))) < 0)
-        return ret;
-
     if ((test->duration) && (ret = av_parse_time(&duration, test->duration, 1)) < 0) {
         av_log(ctx, AV_LOG_ERROR, "Invalid duration: '%s'\n", test->duration);
         return ret;