diff --git a/mlir/include/mlir/Dialect/Shape/IR/ShapeOps.td b/mlir/include/mlir/Dialect/Shape/IR/ShapeOps.td
--- a/mlir/include/mlir/Dialect/Shape/IR/ShapeOps.td
+++ b/mlir/include/mlir/Dialect/Shape/IR/ShapeOps.td
@@ -142,7 +142,7 @@
     extents match the values of the elements.
   }];
 
-  let arguments = (ins I32Tensor:$input);
+  let arguments = (ins IndexTensor:$input);
   let results = (outs Shape_ShapeType:$result);
 }