diff --git a/example/ck_tile/06_rmsnorm2d/example_rmsnorm2d_fwd.cpp b/example/ck_tile/06_rmsnorm2d/example_rmsnorm2d_fwd.cpp
index a1a03727ab..bb2c949015 100644
--- a/example/ck_tile/06_rmsnorm2d/example_rmsnorm2d_fwd.cpp
+++ b/example/ck_tile/06_rmsnorm2d/example_rmsnorm2d_fwd.cpp
@@ -65,7 +65,7 @@ bool run(const ck_tile::ArgParser& arg_parser)
     constexpr bool kTwoPass = true;
 
     using BlockWarps = ck_tile::sequence<2, 2>;
-    using BlockTile  = ck_tile::sequence<2, 256>;
+    using BlockTile  = ck_tile::sequence<2, 128>;
     using WarpTile   = ck_tile::sequence<1, 64>;
     using Vector     = ck_tile::sequence<1, 1>;