diff --git a/plotly/plotlyfig_aux/helpers/extractPatchFace.m b/plotly/plotlyfig_aux/helpers/extractPatchFace.m
index 62c97b16..08282fc1 100644
--- a/plotly/plotlyfig_aux/helpers/extractPatchFace.m
+++ b/plotly/plotlyfig_aux/helpers/extractPatchFace.m
@@ -34,7 +34,7 @@
     switch patch_data.FaceColor
         
         case 'none'
-            marker.color = 'rgba(0,0,0,0,)';
+            marker.color = 'rgba(0,0,0,0)';
             
         case {'flat','interp'}