Index: trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java	(revision 10465)
+++ trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java	(revision 10466)
@@ -282,4 +282,7 @@
             ScaleList scaleList = nativeScaleLayer.getNativeScales();
             if (scaleList != null) {
+                if (PROP_ZOOM_INTERMEDIATE_STEPS.get()) {
+                    scaleList = scaleList.withIntermediateSteps(PROP_ZOOM_RATIO.get());
+                }
                 Scale snapscale = scaleList.getSnapScale(scale, PROP_ZOOM_RATIO.get(), floor);
                 return snapscale != null ? snapscale.getScale() : scale;