diff --git a/libavfilter/vf_mp.c b/libavfilter/vf_mp.c
index a61f0866c1..8cc93f7d85 100644
--- a/libavfilter/vf_mp.c
+++ b/libavfilter/vf_mp.c
@@ -878,7 +878,7 @@ static void end_frame(AVFilterLink *inlink)
 
 AVFilter avfilter_vf_mp = {
     .name      = "mp",
-    .description = NULL_IF_CONFIG_SMALL("libmpcodecs wrapper."),
+    .description = NULL_IF_CONFIG_SMALL("Apply a libmpcodecs filter to the input video."),
     .init = init,
     .priv_size = sizeof(MPContext),
     .query_formats = query_formats,
diff --git a/libavfilter/vsrc_mandelbrot.c b/libavfilter/vsrc_mandelbrot.c
index f0ac7e1bcc..27f6671f76 100644
--- a/libavfilter/vsrc_mandelbrot.c
+++ b/libavfilter/vsrc_mandelbrot.c
@@ -411,7 +411,7 @@ static int request_frame(AVFilterLink *link)
 
 AVFilter avfilter_vsrc_mandelbrot = {
     .name        = "mandelbrot",
-    .description = NULL_IF_CONFIG_SMALL("Mandelbrot fractal renderer."),
+    .description = NULL_IF_CONFIG_SMALL("Render a Mandelbrot fractal."),
 
     .priv_size = sizeof(MBContext),
     .init      = init,