diff --git a/src/concrete/ml/pytest/torch_models.py b/src/concrete/ml/pytest/torch_models.py
index 08e0d834f..f741ca073 100644
--- a/src/concrete/ml/pytest/torch_models.py
+++ b/src/concrete/ml/pytest/torch_models.py
@@ -194,6 +194,7 @@ def __init__(self, input_output, activation_function):
         self.conv1 = nn.Conv2d(input_output, 3, 3, stride=1, padding=1)
         self.pool = nn.AvgPool2d(2, 2)
         self.conv2 = nn.Conv2d(3, 3, 1)
+        self.bn1 = nn.BatchNorm2d(3)
         self.fc1 = nn.Linear(3 * 3 * 3, 5)
         self.fc2 = nn.Linear(5, 3)
         self.fc3 = nn.Linear(3, 2)
@@ -210,6 +211,7 @@ def forward(self, x):
         """
         x = self.pool(self.activation_function(self.conv1(x)))
         x = self.activation_function(self.conv2(x))
+        x = self.bn1(x)
         x = x.flatten(1)
         x = self.activation_function(self.fc1(x))
         x = self.activation_function(self.fc2(x))
@@ -1555,6 +1557,7 @@ def __init__(self, input_output, activation_function) -> None:
         super().__init__()
 
         self.conv1 = nn.Conv1d(input_output, 2, 2, stride=1, padding=0)
+        self.bn1 = nn.BatchNorm1d(2)
         self.act = activation_function()
         self.fc1 = nn.Linear(input_output, 3)
 
@@ -1569,5 +1572,6 @@ def forward(self, x):
 
         """
         x = self.act(self.conv1(x))
+        x = self.bn1(x)
         x = self.fc1(x)
         return x