diff --git a/aiter/fused_moe.py b/aiter/fused_moe.py
index 41771a8389..3f8cc65288 100644
--- a/aiter/fused_moe.py
+++ b/aiter/fused_moe.py
@@ -836,9 +836,10 @@ def _fused_moe_impl(
         and stage1_func in (_flydsl_stage1_wrapper, cktile_moe_stage1)
         and expert_mask is not None
     )
-    assert (
-        not metadata.flat or get_gfx() == "gfx950"
-    ), f"FLAT fmoe asm kernels are gfx950-only; refusing to launch on {get_gfx()}. "
+    assert not metadata.flat or get_gfx() in (
+        "gfx942",
+        "gfx950",
+    ), f"FLAT fmoe asm kernels require gfx942/gfx950; got {get_gfx()}. "
 
     sort_m_indices = None
     sort_reverse_sorted = None