diff --git a/aiserver.py b/aiserver.py
index 2eb06c32..9ef798cd 100644
--- a/aiserver.py
+++ b/aiserver.py
@@ -2572,7 +2572,7 @@ def spRequest(filename):
             -1,
             tpu_mtj_backend.params["d_model"],
         )
-        vars.sp = tensor
+        vars.sp = np.float32(tensor)
     else:
         vars.sp = torch.from_numpy(tensor)