diff --git a/metal/src/kernels/nn/scaled_masked_softmax.rs b/metal/src/kernels/nn/scaled_masked_softmax.rs
index b38e6ec0e4..67e2cb3b50 100644
--- a/metal/src/kernels/nn/scaled_masked_softmax.rs
+++ b/metal/src/kernels/nn/scaled_masked_softmax.rs
@@ -218,11 +218,12 @@ mod tests {
     where
         F: Datum + Float + std::ops::AddAssign,
         usize: AsPrimitive<F>,
+        f32: AsPrimitive<F>,
     {
         pub fn reference(&self) -> Result<Tensor> {
             let a = Tensor::from_shape(self.shape.as_slice(), &self.input)?;
             let mask = Tensor::from_shape(self.mask_shape.as_slice(), &self.mask)?;
-            let scale: Arc<_> = tensor0(0.125f32).into();
+            let scale: Arc<_> = tensor0::<F>(0.125f32.as_()).into();
 
             let cpu_output = BasicScaledMaskedSoftmax { scale }
                 .eval(tvec![a.into_tvalue(), mask.into_tvalue()])?[0]
@@ -237,7 +238,7 @@ mod tests {
                     let a = Tensor::from_shape(self.shape.as_slice(), &self.input)?.into_metal()?;
                     let mask =
                         Tensor::from_shape(self.mask_shape.as_slice(), &self.mask)?.into_metal()?;
-                    let scale: Arc<_> = tensor0(0.125f32).into();
+                    let scale: Arc<_> = tensor0::<F>(0.125f32.as_()).into();
                     let metal_output = ScaledMaskedSoftmax.eval(context, &a, &scale, &mask)?;
                     metal_output.to_cpu()
                 })