1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/net/sowgro/npehero/editor/DiffEditor.java b/src/main/java/net/sowgro/npehero/editor/DiffEditor.java
index f98ff46..6940485 100755
--- a/src/main/java/net/sowgro/npehero/editor/DiffEditor.java
+++ b/src/main/java/net/sowgro/npehero/editor/DiffEditor.java
@@ -61,7 +61,7 @@ public class DiffEditor extends Page
 
         Button playLevel = new Button("Play level");
         playLevel.setOnAction(_ -> {
-            if (diff.isValid && diff.level.isValid) {
+            if (diff.isValid() && diff.level.isValid()) {
                 Driver.setMenu(new LevelSurround(diff.level, diff, this));
             }
             else {