diff --git a/samples/getting_started/QuantumHelloWorld.qs b/samples/getting_started/QuantumHelloWorld.qs
index fa12f83834..8d20aac944 100644
--- a/samples/getting_started/QuantumHelloWorld.qs
+++ b/samples/getting_started/QuantumHelloWorld.qs
@@ -5,6 +5,7 @@
 /// This is one of the simplest Q# programs that contains quantum part.
 /// This code prints the message then allocates a qubit and immediately measures it.
 /// Since the qubit starts in |0〉 state such measurement will always yield `Zero`.
+@EntryPoint()
 operation Main() : Result {
     // Print the message (when running on a simulator).
     Message("Hello world!");
@@ -14,7 +15,7 @@ operation Main() : Result {
 
     // Measure then reset the qubit. Last statement returns result from `Main`.
     // Measurement result is `Zero` as the qubit is in |0〉 state.
-    MResetZ(qubit)
+    return MResetZ(qubit)
 
     // Note, that `qubit` is automatically deallocated at the end of the block.
 }