diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 7f300109806..f7d44991051 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -5732,9 +5732,9 @@ void si_init_cs_preamble_state(struct si_context *sctx, bool uses_reg_shadowing)
 
       if (sctx->gfx_level >= GFX11) {
          /* ACCUM fields changed their meaning. */
-         vgt_tess_distribution = S_028B50_ACCUM_ISOLINE(255) |
-                                 S_028B50_ACCUM_TRI(255) |
-                                 S_028B50_ACCUM_QUAD(255) |
+         vgt_tess_distribution = S_028B50_ACCUM_ISOLINE(128) |
+                                 S_028B50_ACCUM_TRI(128) |
+                                 S_028B50_ACCUM_QUAD(128) |
                                  S_028B50_DONUT_SPLIT_GFX9(24) |
                                  S_028B50_TRAP_SPLIT(6);
       } else if (sctx->gfx_level >= GFX9) {