diff --git a/build.gradle b/build.gradle
index e82de95..0fbe6ea 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,5 +13,8 @@ dependencies {
 
 def main_class = 'jettyplay.MainFrame'
 mainClassName = main_class
-jar    { manifest { attributes 'Main-Class': main_class } }
 
+jar {
+    manifest { attributes 'Main-Class': main_class }
+    from { configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) } }
+}