diff --git a/datalets/leafletjs-datalet/leafletjs-datalet.html b/datalets/leafletjs-datalet/leafletjs-datalet.html
index a1c7327..5ceee13 100755
--- a/datalets/leafletjs-datalet/leafletjs-datalet.html
+++ b/datalets/leafletjs-datalet/leafletjs-datalet.html
@@ -101,7 +101,7 @@ Example:
                         else
                             continue;
                     }
-                    else if(t.data[0].data[i].indexOf(","))
+                    else if(t.data[0].data[i] && t.data[0].data[i].indexOf(","))
                     {
                         var coords = t.data[0].data[i].split(",");
                         if(!isNaN(coords[0]) && !isNaN(coords[1]))