diff --git a/src/js/datamaps.js b/src/js/datamaps.js
index 121e2711..c2f58e64 100644
--- a/src/js/datamaps.js
+++ b/src/js/datamaps.js
@@ -789,7 +789,7 @@
               }
               data = tmpData;
             }
-            Datamaps.prototype.updateChoropleth.call(self, data);
+            Datamap.prototype.updateChoropleth.call(self, data);
           });
         }
         drawSubunits.call(self, data);