diff --git a/scgv/views/clone.py b/scgv/views/clone.py
index 0cb4307..226ebda 100644
--- a/scgv/views/clone.py
+++ b/scgv/views/clone.py
@@ -30,7 +30,7 @@ def _select_colormap_size(self, size):
         return ListedColormap(colors)
 
     def _select_colormap(self):
-        self.vmax = np.max(self.model.subclone)
+        self.vmax = max(np.max(self.model.clone), np.max(self.model.subclone))
         size = int(self.vmax)
         self.cmap = self._select_colormap_size(size)