diff --git a/src/com/jpexs/decompiler/flash/gui/Main.java b/src/com/jpexs/decompiler/flash/gui/Main.java
index d4d80016c..54bb834f2 100644
--- a/src/com/jpexs/decompiler/flash/gui/Main.java
+++ b/src/com/jpexs/decompiler/flash/gui/Main.java
@@ -559,7 +559,7 @@ public class Main {
     }
     
     private static File createTempFileInDir(File tempFilesDir, String prefix, String suffix) throws IOException {       
-        if (!tempFilesDir.isDirectory()) {
+        if (tempFilesDir == null || !tempFilesDir.isDirectory()) {
             return File.createTempFile(prefix, suffix);
         }
         try {