diff --git a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
index 8610650be..888caf85f 100644
--- a/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
+++ b/app_pojavlauncher/src/main/java/net/kdt/pojavlaunch/Tools.java
@@ -744,7 +744,7 @@ public final class Tools {
             }
 
             // LabyMod 4 sets version instead of majorVersion
-            if (customVer.javaVersion.majorVersion == 0) {
+            if (customVer.javaVersion != null && customVer.javaVersion.majorVersion == 0) {
                 customVer.javaVersion.majorVersion = customVer.javaVersion.version;
             }
             return customVer;