diff --git a/src/layers/activation_layer.rs b/src/layers/activation_layer.rs
index 61324c4..8aa53cf 100644
--- a/src/layers/activation_layer.rs
+++ b/src/layers/activation_layer.rs
@@ -30,8 +30,6 @@ impl Layer for ActivationLayer {
     }
 
     fn backward_pass(&mut self, output_error: ArrayView1<f64>, _learning_rate: f64) -> Array1<f64> {
-        // (self.activation_prime)(&self.input).into_shape((1 as usize, output_error.len() as usize)).unwrap().dot(&output_error)
-        // (self.activation_prime)(&self.input) * &output_error
         let mut temp = (self.activation_prime)(&self.input);
         temp.zip_mut_with(&output_error, |x, y| *x *= y);
         temp