diff --git a/build.gradle b/build.gradle
index a2951cc709e..e5824c45f66 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,6 +11,10 @@ mainClassName = 'seedu.address.Main'
 sourceCompatibility = JavaVersion.VERSION_11
 targetCompatibility = JavaVersion.VERSION_11
 
+run {
+    enableAssertions = true
+}
+
 repositories {
     mavenCentral()
     maven { url 'https://oss.sonatype.org/content/repositories/snapshots/' }