diff --git a/app/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java b/app/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java
index e79ea80b8..9c9666680 100644
--- a/app/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java
+++ b/app/src/main/java/net/kdt/pojavlaunch/JavaGUILauncherActivity.java
@@ -23,7 +23,7 @@ public class JavaGUILauncherActivity extends LoggableActivity {
     private File logFile;
     private PrintStream logStream;
     
-    private Object mDialogLock;
+    private Object mDialogLock = new Object();
 
     private boolean isLogAllow, mSkipDetectMod;