diff --git a/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp b/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
index 4a4427f3cbaf..78045c9c8b30 100644
--- a/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
+++ b/mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorConversion.cpp
@@ -653,6 +653,7 @@ static void genDenseTensorIterationLoop(
     RankedTensorType tensorTp,
     function_ref<void(OpBuilder &, Location, ValueRange)> bodyBuilder) {
   auto enc = getSparseTensorEncoding(tensorTp);
+  (void) enc;
   assert(!enc && "Generating Densor Tensor Loop on a Sparse Tensor!");
 
   unsigned rank = tensorTp.getRank();