diff --git a/docs/src/languages/ruby.md b/docs/src/languages/ruby.md
index f400024d5c..a80c2bbe55 100644
--- a/docs/src/languages/ruby.md
+++ b/docs/src/languages/ruby.md
@@ -291,14 +291,15 @@ To run tests in your Ruby project, you can set up custom tasks in your local `.z
 ```json
 [
   {
-    "label": "test $ZED_RELATIVE_FILE:$ZED_ROW",
-    "command": "bin/rails",
-    "args": ["test", "\"$ZED_RELATIVE_FILE:$ZED_ROW\""],
+    "label": "test $ZED_RELATIVE_FILE -n /$ZED_SYMBOL/",
+    "command": "bin/rails test $ZED_RELATIVE_FILE -n /$ZED_SYMBOL/",
     "tags": ["ruby-test"]
   }
 ]
 ```
 
+Note: We can't use `args` here because of the way quotes are handled.
+
 ### Minitest
 
 Plain minitest does not support running tests by line number, only by name, so we need to use `$ZED_SYMBOL` instead: