diff --git a/reference/CoWorkCoDo/CoWorkCoDo.upp b/reference/CoWorkCoDo/CoWorkCoDo.upp
new file mode 100644
index 000000000..07e67eafc
--- /dev/null
+++ b/reference/CoWorkCoDo/CoWorkCoDo.upp
@@ -0,0 +1,11 @@
+description "Demonstrates CoDo parallelization\377";
+
+uses
+	Core;
+
+file
+	CoWorkLoop.cpp;
+
+mainconfig
+	"" = "";
+
diff --git a/reference/CoWorkLoop/CoWorkLoop.cpp b/reference/CoWorkCoDo/CoWorkLoop.cpp
similarity index 75%
rename from reference/CoWorkLoop/CoWorkLoop.cpp
rename to reference/CoWorkCoDo/CoWorkLoop.cpp
index b7eba5fab..cf0bcd568 100644
--- a/reference/CoWorkLoop/CoWorkLoop.cpp
+++ b/reference/CoWorkCoDo/CoWorkLoop.cpp
@@ -14,18 +14,17 @@ CONSOLE_APP_MAIN
 	}
 	
 	double sum = 0;
-	CoWork co;
-	co * [&] {
+	std::atomic<int> ii(0);
+	CoDo([&] {
 		double m = 0;
-		int i;
-		while((i = co.Next()) < data.GetCount()) {
+		for(int i = ii++; i < data.GetCount(); i = ii++) {
 			CParser p(data[i]);
 			while(!p.IsEof())
 				m += p.ReadDouble();
 		}
 		CoWork::FinLock();
 		sum += m;
-	};
+	});
 
 	RDUMP(sum);
 }
diff --git a/reference/CoWorkLoop/CoWorkLoop.upp b/reference/CoWorkLoop/CoWorkLoop.upp
deleted file mode 100644
index 0079d4d8a..000000000
--- a/reference/CoWorkLoop/CoWorkLoop.upp
+++ /dev/null
@@ -1,11 +0,0 @@
-description "Demonstrates Loop (aka operator *) method\377";
-
-uses
-	Core;
-
-file
-	CoWorkLoop.cpp;
-
-mainconfig
-	"" = "";
-