diff --git a/desktop/build.gradle b/desktop/build.gradle
index 4c8a14f86f..347ffeee07 100644
--- a/desktop/build.gradle
+++ b/desktop/build.gradle
@@ -48,7 +48,7 @@ task dist(type: Jar, dependsOn: configurations.runtimeClasspath){
     }
 }
 
-if(!project.ext.hasSprites()){
+if(!project.ext.hasSprites() && System.getenv("JITPACK") != "true"){
     println "Scheduling sprite packing."
     run.dependsOn ":tools:pack"
     dist.dependsOn ":tools:pack"
diff --git a/jitpack.yml b/jitpack.yml
index e5bc069fcf..0478674dfa 100644
--- a/jitpack.yml
+++ b/jitpack.yml
@@ -1,3 +1,5 @@
+jdk:
+  - openjdk16
 before_install:
   - wget https://github.com/sormuras/bach/raw/master/install-jdk.sh
   - source install-jdk.sh --feature 16