diff --git a/include/cute/atom/mma_traits_sm80.hpp b/include/cute/atom/mma_traits_sm80.hpp
index 357921e4..61eea7c2 100644
--- a/include/cute/atom/mma_traits_sm80.hpp
+++ b/include/cute/atom/mma_traits_sm80.hpp
@@ -458,7 +458,7 @@ struct MMA_Traits<SM80_16x8x32_S32S4S4S32_TN> {
                          Stride<Stride<_128, _1>, Stride<_16, _8>>>;
   // (T32,V8) -> (M8,N32)
   using BLayout = Layout<Shape <Shape < _4, _8>, Shape <_8>>,
-                         Stride<Stride<_32, _1>, Stride<_8>>>;
+                         Stride<Stride<_64, _1>, Stride<_8>>>;
   using CLayout = SM80_16x8_Row;
 };