diff --git a/src/com/t_oster/liblasercut/drivers/EpilogCutter.java b/src/com/t_oster/liblasercut/drivers/EpilogCutter.java
index 47bdc7192a261ba4272031463ce9adb052c8a05d..b36b4bcdd4eb4d03d67b5636ceee81eb8bf6b328 100644
--- a/src/com/t_oster/liblasercut/drivers/EpilogCutter.java
+++ b/src/com/t_oster/liblasercut/drivers/EpilogCutter.java
@@ -278,7 +278,7 @@ abstract class EpilogCutter extends LaserCutter
         RasterPart rp = ((RasterPart) p);
         for (int i = 0; i < rp.getRasterCount(); i++)
         {
-          if (rp.getLaserProperty(i) != null && !(rp.getLaserProperty(i) instanceof PowerSpeedFocusFrequencyProperty))
+          if (rp.getLaserProperty(i) != null && !(rp.getLaserProperty(i) instanceof PowerSpeedFocusProperty))
           {
             throw new IllegalJobException("This driver expects Power,Speed and Focus as settings");
           }
@@ -295,7 +295,7 @@ abstract class EpilogCutter extends LaserCutter
         Raster3dPart rp = (Raster3dPart) p;
         for (int i = 0; i < rp.getRasterCount(); i++)
         {
-          if (rp.getLaserProperty(i) != null && !(rp.getLaserProperty(i) instanceof PowerSpeedFocusFrequencyProperty))
+          if (rp.getLaserProperty(i) != null && !(rp.getLaserProperty(i) instanceof PowerSpeedFocusProperty))
           {
             throw new IllegalJobException("This driver expects Power,Speed and Focus as settings");
           }