diff --git a/src/gluonts/model/forecast_generator.py b/src/gluonts/model/forecast_generator.py
index ca4bbd1951..33b0320808 100644
--- a/src/gluonts/model/forecast_generator.py
+++ b/src/gluonts/model/forecast_generator.py
@@ -84,7 +84,8 @@ def make_distribution_forecast(distr, *args, **kwargs) -> Forecast:
 
 def make_predictions(prediction_net, inputs: dict):
     # MXNet predictors only support positional arguments
-    if prediction_net.__class__.__module__.startswith("gluonts.mx"):
+    class_name = prediction_net.__class__.__module__
+    if class_name.startswith("gluonts.mx") or class_name.startswith("mxnet"):
         return prediction_net(*inputs.values())
     else:
         return prediction_net(**inputs)