diff --git a/core/src/io/anuke/mindustry/game/MusicControl.java b/core/src/io/anuke/mindustry/game/MusicControl.java
index c7d6e9c87f..81b0cdf0b6 100644
--- a/core/src/io/anuke/mindustry/game/MusicControl.java
+++ b/core/src/io/anuke/mindustry/game/MusicControl.java
@@ -133,7 +133,7 @@ public class MusicControl{
     }
 
     /** Plays a music track once and only once. If something is already playing, does nothing.*/
-    private void playOnce(@NonNull Music music){
+    private void playOnce(Music music){
         if(current != null || music == null) return; //do not interrupt already-playing tracks
 
         //save last random track played to prevent duplicates
diff --git a/gradle.properties b/gradle.properties
index 2eb744b126..362148b80f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=e16966ad08f414e4f40561f68b2803ef8eff43ca
+archash=adfc26454439b6e3a9978474e685f68f38f2b137