diff --git a/extra/gemm/simple_matmul.py b/extra/gemm/simple_matmul.py
index 825089a9..7ca3f112 100644
--- a/extra/gemm/simple_matmul.py
+++ b/extra/gemm/simple_matmul.py
@@ -12,4 +12,4 @@ for i in range(CNT):
   c = (a.reshape(N, 1, N) * b.permute(1,0).reshape(1, N, N)).float().sum(axis=2).realize() if getenv("ACCUM_FP32") else (a @ b).realize()
 comp = a.numpy().astype(np.float32) @ b.numpy().astype(np.float32)
 nc = c.numpy()
-np.testing.assert_allclose(nc, comp, atol=1e-4, rtol=1e-2)
+np.testing.assert_allclose(nc, comp, atol=1e-4, rtol=3e-2)