diff --git a/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m b/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m
index 8833847c9..be64d33e9 100644
--- a/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m
+++ b/matRad/doseCalc/+DoseEngines/matRad_PencilBeamEngineAbstract.m
@@ -531,6 +531,10 @@ function setDefaults(this)
                 end
             end
 
+            if this.keepRadDepthCubes && ~isempty(this.radDepthCubes)
+                dij.radDepthCubes = this.radDepthCubes;
+            end            
+
             dij = this.finalizeDose@DoseEngines.matRad_DoseEngineBase(dij);
         end
     end
diff --git a/matRad/rayTracing/matRad_siddonRayTracer.m b/matRad/rayTracing/matRad_siddonRayTracer.m
index a4cd45a40..c1cc9313e 100644
--- a/matRad/rayTracing/matRad_siddonRayTracer.m
+++ b/matRad/rayTracing/matRad_siddonRayTracer.m
@@ -84,10 +84,11 @@
 doesHit = false;
 for t = tvalues
     p = sourcePoint + t*(targetPoint - sourcePoint);
-    if (p(1) >= xPlane_1 && p(1) <= xPlane_end && ...
-        p(2) >= yPlane_1 && p(2) <= yPlane_end && ...
-        p(3) >= zPlane_1 && p(3) <= zPlane_end)
+    lowerPlanes = [xPlane_1,yPlane_1,zPlane_1]  - sqrt(eps);
+    upperPlanes = [xPlane_end,yPlane_end,zPlane_end]  + sqrt(eps);
+    if all(p > lowerPlanes & p < upperPlanes)
         doesHit = true;
+        continue;
     end
 end