diff --git a/dfdx-core/src/tensor_ops/concat_tensor_along/mod.rs b/dfdx-core/src/tensor_ops/concat_tensor_along/mod.rs
index 8e980739..393f1976 100644
--- a/dfdx-core/src/tensor_ops/concat_tensor_along/mod.rs
+++ b/dfdx-core/src/tensor_ops/concat_tensor_along/mod.rs
@@ -86,7 +86,6 @@ where
     A: Shape + HasAxes<Ax>,
     B: Shape<Concrete = A::Concrete> + HasAxes<Ax>,
     (A, B): TryConcatShapeAlong<Ax>,
-    <(A, B) as TryConcatShapeAlong<Ax>>::Output: Shape,
     T: Merge<R>,
 {
     type Output = Tensor<<(A, B) as TryConcatShapeAlong<Ax>>::Output, E, D, T>;