diff --git a/doc/filters.texi b/doc/filters.texi
index d51fc4d9e0..e691ec0bb2 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -17290,6 +17290,15 @@ option may cause flicker since the B-Frames have often larger QP. Default is
 @code{0} (not enabled).
 @end table
 
+@subsection Commands
+
+This filter supports the following commands:
+@table @option
+@item level
+@item quality
+Same as quality option. And the command accepts the @code{max} same as the @code{6}.
+@end table
+
 @section sr
 
 Scale the input by applying one of the super-resolution methods based on
diff --git a/libavfilter/vf_spp.c b/libavfilter/vf_spp.c
index fe579cedb1..db381cdf30 100644
--- a/libavfilter/vf_spp.c
+++ b/libavfilter/vf_spp.c
@@ -444,7 +444,7 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
 {
     SPPContext *s = ctx->priv;
 
-    if (!strcmp(cmd, "level")) {
+    if (!strcmp(cmd, "level") || !strcmp(cmd, "quality")) {
         if (!strcmp(args, "max"))
             s->log2_count = MAX_LEVEL;
         else