diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 1cf1d4b2..2a02800e 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1656,6 +1656,7 @@ JavaScript:
   - .gs
   - .jake
   - .jsb
+  - .jscad
   - .jsfl
   - .jsm
   - .jss
diff --git a/samples/JavaScript/logo.jscad b/samples/JavaScript/logo.jscad
new file mode 100644
index 00000000..2ada0778
--- /dev/null
+++ b/samples/JavaScript/logo.jscad
@@ -0,0 +1,19 @@
+// title      : OpenJSCAD.org Logo
+// author     : Rene K. Mueller
+// license    : MIT License
+// revision   : 0.003
+// tags       : Logo,Intersection,Sphere,Cube
+// file       : logo.jscad
+
+function main() {
+   return union(
+      difference(
+         cube({size: 3, center: true}),
+         sphere({r:2, center: true})
+      ),
+      intersection(
+          sphere({r: 1.3, center: true}),
+          cube({size: 2.1, center: true})
+      )
+   ).translate([0,0,1.5]).scale(10);
+}