diff --git a/mlir/include/mlir/Dialect/Utils/StructuredOpsUtils.h b/mlir/include/mlir/Dialect/Utils/StructuredOpsUtils.h
--- a/mlir/include/mlir/Dialect/Utils/StructuredOpsUtils.h
+++ b/mlir/include/mlir/Dialect/Utils/StructuredOpsUtils.h
@@ -41,7 +41,7 @@
   bindDims(context, m, n, k);
   auto mapA = AffineMapAttr::get(AffineMap::get(3, 0, {k, n}, context));
   auto mapB = AffineMapAttr::get(AffineMap::get(3, 0, {m, k}, context));
-  auto mapC = AffineMapAttr::get(AffineMap::get(3, 0, {n, m}, context));
+  auto mapC = AffineMapAttr::get(AffineMap::get(3, 0, {m, n}, context));
   auto maps = ArrayAttr::get(context, {mapA, mapB, mapC});
   return indexingMaps == maps;
 }