diff --git a/direct/nn/conv/modulated_conv.py b/direct/nn/conv/modulated_conv.py
index 31ab712b..1e987b6c 100644
--- a/direct/nn/conv/modulated_conv.py
+++ b/direct/nn/conv/modulated_conv.py
@@ -113,6 +113,7 @@ def __init__(
                 nn.Linear(aux_in_features, fc_hidden_features, bias=fc_bias),
                 nn.PReLU(),
                 nn.Linear(fc_hidden_features, in_channels * out_channels, bias=fc_bias),
+                nn.Sigmoid(),
             )
 
         if bias == ModConv2dBias.PARAM:
@@ -255,6 +256,7 @@ def __init__(
                 nn.Linear(aux_in_features, fc_hidden_features, bias=fc_bias),
                 nn.PReLU(),
                 nn.Linear(fc_hidden_features, in_channels * out_channels, bias=fc_bias),
+                nn.Sigmoid(),
             )
 
         if bias == ModConv2dBias.PARAM: