diff --git a/doc/manual.rst b/doc/manual.rst
index e4231e7d1f..d8ba0ebed6 100644
--- a/doc/manual.rst
+++ b/doc/manual.rst
@@ -6347,12 +6347,18 @@ is uncertain (it may be removed any time).
 Example:
 
 .. code-block:: nim
+  import threadpool
   {.experimental: "parallel".}
 
+  proc threadedEcho(s: string, i: int) =
+    echo(s, " ", $i)
+
   proc useParallel() =
     parallel:
       for i in 0..4:
-        echo "echo in parallel"
+        spawn threadedEcho("echo in parallel", i)
+
+  useParallel()
 
 
 As a top level statement, the experimental pragma enables a feature for the