diff --git a/creator-tools/build.gradle b/creator-tools/build.gradle
index a99e096..c93a961 100644
--- a/creator-tools/build.gradle
+++ b/creator-tools/build.gradle
@@ -1,4 +1,5 @@
 plugins {
+    id 'application'
     id "com.github.johnrengelman.shadow"
 }
 
@@ -20,11 +21,7 @@
     }
 }
 
-jar {
-    manifest {
-        attributes("Main-Class": "com.skcraft.launcher.creator.Creator")
-    }
-}
+mainClassName = "com.skcraft.launcher.creator.Creator"
 
 shadowJar {
 }
diff --git a/launcher-bootstrap/build.gradle b/launcher-bootstrap/build.gradle
index 4777a69..4ffff0b 100644
--- a/launcher-bootstrap/build.gradle
+++ b/launcher-bootstrap/build.gradle
@@ -1,13 +1,10 @@
 plugins {
+    id 'application'
     id "com.github.johnrengelman.shadow"
     id 'io.franzbecker.gradle-lombok'
 }
 
-jar {
-    manifest {
-        attributes("Main-Class": "com.skcraft.launcher.Bootstrap")
-    }
-}
+mainClassName = "com.skcraft.launcher.Bootstrap"
 
 dependencies {
     compile 'com.googlecode.json-simple:json-simple:1.1.1'
diff --git a/launcher-builder/build.gradle b/launcher-builder/build.gradle
index 8c0e604..787e83c 100644
--- a/launcher-builder/build.gradle
+++ b/launcher-builder/build.gradle
@@ -1,12 +1,9 @@
 plugins {
+    id 'application'
     id "com.github.johnrengelman.shadow"
 }
 
-jar {
-    manifest {
-        attributes("Main-Class": "com.skcraft.launcher.builder.PackageBuilder")
-    }
-}
+mainClassName = "com.skcraft.launcher.builder.PackageBuilder"
 
 dependencies {
     compile project(':launcher')
diff --git a/launcher-fancy/build.gradle b/launcher-fancy/build.gradle
index e20e21a..5b5f8e0 100644
--- a/launcher-fancy/build.gradle
+++ b/launcher-fancy/build.gradle
@@ -1,12 +1,9 @@
 plugins {
+    id 'application'
     id "com.github.johnrengelman.shadow"
 }
 
-jar {
-    manifest {
-        attributes("Main-Class": "com.skcraft.launcher.FancyLauncher")
-    }
-}
+mainClassName = "com.skcraft.launcher.FancyLauncher"
 
 dependencies {
     compile project(':launcher')
diff --git a/launcher/build.gradle b/launcher/build.gradle
index 43dec87..0f11adf 100644
--- a/launcher/build.gradle
+++ b/launcher/build.gradle
@@ -1,13 +1,10 @@
 plugins {
+    id 'application'
     id "com.github.johnrengelman.shadow"
     id 'io.franzbecker.gradle-lombok'
 }
 
-jar {
-    manifest {
-        attributes("Main-Class": "com.skcraft.launcher.Launcher")
-    }
-}
+mainClassName = "com.skcraft.launcher.Launcher"
 
 dependencies {
     compile 'javax.xml.bind:jaxb-api:2.2.4'