diff --git a/doc/general.texi b/doc/general.texi
index 2aa7d5a58f..3d6bf78640 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -168,7 +168,7 @@ library:
 @item AST                       @tab X @tab X
     @tab Audio format used on the Nintendo Wii.
 @item AVI                       @tab X @tab X
-@item AVISynth                  @tab   @tab X
+@item AviSynth                  @tab   @tab X
 @item AVR                       @tab   @tab X
     @tab Audio format used on Mac.
 @item AVS                       @tab   @tab X
diff --git a/libavfilter/vf_gradfun.c b/libavfilter/vf_gradfun.c
index f9dec77185..e615e1e592 100644
--- a/libavfilter/vf_gradfun.c
+++ b/libavfilter/vf_gradfun.c
@@ -25,7 +25,7 @@
  * libmpcodecs/vf_gradfun.c
  *
  * Apply a boxblur debanding algorithm (based on the gradfun2db
- * Avisynth filter by prunedtree).
+ * AviSynth filter by prunedtree).
  * Foreach pixel, if it's within threshold of the blurred value, make it closer.
  * So now we have a smoothed and higher bitdepth version of all the shallow
  * gradients, while leaving detailed areas untouched.