diff --git a/appDefinition.json b/appDefinition.json
index 9b962a5..1a6093e 100644
--- a/appDefinition.json
+++ b/appDefinition.json
@@ -15,7 +15,7 @@
   "outputs" : [ {
     "dataType" : "image_data",
     "fileFormat" : "PNG",
-    "fileName" : "multiplied_numbers_plot_chart.png",
+    "fileName" : "multiplied_numbers_plot.png",
     "isReturnedValue" : false
   } ],
   "requiredTools" : [ "python3", "python-numpy" ],