diff --git a/build.gradle b/build.gradle
index 71f4540aed..f6f454744b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -44,7 +44,7 @@ test {
 }
 
 application {
-    mainClassName = "duke.Duke"
+    mainClassName = "duke.Launcher"
 }
 
 checkstyle {
@@ -58,4 +58,5 @@ shadowJar {
 
 run{
     standardInput = System.in
+    enableAssertions = true
 }