diff --git a/test/backend/test_dtype_alu.py b/test/backend/test_dtype_alu.py
index 05c3074bf4..71679a37a6 100644
--- a/test/backend/test_dtype_alu.py
+++ b/test/backend/test_dtype_alu.py
@@ -111,6 +111,7 @@ def universal_test_cast(a, in_dtype, dtype):
 def universal_test_midcast(a, b, c, op1, op2, d1:DType, d2:DType):
   if not isinstance(op1, tuple): op1 = (op1, op1)
   if not isinstance(op2, tuple): op2 = (op2, op2)
+  if op1[0] == operator.mod and b == 0: return
   # lt and max with nan is undefined in tinygrad
   if op1[0] in (operator.lt, Tensor.maximum) and (math.isnan(a) or math.isnan(b)): return
   if op2[0] in (operator.lt, Tensor.maximum) and math.isnan(c): return