diff --git a/docs/AUTHORS.txt b/docs/AUTHORS.txt
index 0bfb5ec5d..981240d92 100644
--- a/docs/AUTHORS.txt
+++ b/docs/AUTHORS.txt
@@ -187,12 +187,16 @@ June 17, 2002 - May 22, 2023
   "Loops" & "Squiggles" Magic tools
   by Bill Kendrick <bill@newbreedsoftware.com>
 
-  "Loops" sound:
-  "Percussion » Wobble Board"
+  "Loops" sound: "Percussion » Wobble Board"
   (https://freesound.org/people/Jagadamba/sounds/254397/)
   Creative Commons Attribution 4.0 International (CC BY 4.0)
   by https://freesound.org/people/Jagadamba/
 
+  "Squiggles" sound: "Scribble"
+  (https://freesound.org/people/Tomoyo%20Ichijouji/sounds/211247/)
+  Creative Commons 0 License (CC0)
+  by https://freesound.org/people/Tomoyo%20Ichijouji/
+
   Mouse accessibility code and keyboard access
   Ankit Choudary <ankit.goaldecided@gmail.com>, as part of GSOC 2010,
   with integration and fixes by Pere Pujal i Carabantes <pere@fornol.no-ip.org>
diff --git a/docs/CHANGES.txt b/docs/CHANGES.txt
index e7ae299db..93da7d5d0 100644
--- a/docs/CHANGES.txt
+++ b/docs/CHANGES.txt
@@ -28,7 +28,8 @@ https://tuxpaint.org/
 
     * WIP Squiggles - Draw squiggly shapes.
       Bill Kendrick <bill@newbreedsoftware.com>
-      - WIP needs sfx
+      Sound effect CC0 (public domain)
+      by https://freesound.org/people/Tomoyo%20Ichijouji/
       - WIP needs icon
 
   * Improvements to Eraser tool:
diff --git a/magic/sounds/squiggles.ogg b/magic/sounds/squiggles.ogg
new file mode 100644
index 000000000..a0eeed882
Binary files /dev/null and b/magic/sounds/squiggles.ogg differ
diff --git a/magic/src/smooth.c b/magic/src/smooth.c
index b7c4c05ad..5129177c9 100644
--- a/magic/src/smooth.c
+++ b/magic/src/smooth.c
@@ -48,7 +48,7 @@ enum {
 
 char * smooth_snd_fnames[NUM_TOOLS] = {
   "rainbow.ogg", // FIXME
-  "rainbow.ogg", // FIXME
+  "squiggles.ogg",
   "loops.ogg",
 };