diff --git a/BauSystem_Main/src/de/steamwar/bausystem/tracer/show/ShowModeParameter.java b/BauSystem_Main/src/de/steamwar/bausystem/tracer/show/ShowModeParameter.java
index 27900a5..153e580 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/tracer/show/ShowModeParameter.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/tracer/show/ShowModeParameter.java
@@ -57,7 +57,7 @@ public class ShowModeParameter {
     }
 
     public boolean isAdvanced() {
-        return interpolate_Y | interpolate_XZ;
+        return interpolate_Y || interpolate_XZ;
     }
 
     public static ShowModeParameter parseArguments(String[] args, int index) {