diff --git a/tinygrad/runtime/ops_hip.py b/tinygrad/runtime/ops_hip.py
index 2529d4b79b..9d02a86974 100644
--- a/tinygrad/runtime/ops_hip.py
+++ b/tinygrad/runtime/ops_hip.py
@@ -30,7 +30,9 @@ HIP = _HIP()
 
 class RawHIPBuffer(RawBufferCopyInOut, RawBufferTransfer):
   def __init__(self, size, dtype, device=str(HIP.default_device)): super().__init__(size, dtype, allocator=HIP.allocator, **{'device': int(device)})
-  def _copyin(self, x:np.ndarray): hip.hipMemcpyAsync(self._buf, x.ctypes.data, self.size * self.dtype.itemsize, hip.hipMemcpyHostToDevice, 0)
+  def _copyin(self, x:np.ndarray):
+    x = np.require(x, requirements='C')
+    hip.hipMemcpyAsync(self._buf, x.ctypes.data, self.size * self.dtype.itemsize, hip.hipMemcpyHostToDevice, 0)
   def _copyout(self, x:np.ndarray): hip.hipMemcpy(x.ctypes.data, self._buf, self.size * self.dtype.itemsize, hip.hipMemcpyDeviceToHost)
   def _transfer(self, x): hip.hipMemcpyAsync(self._buf, x._buf, self.size * self.dtype.itemsize, hip.hipMemcpyDeviceToDevice, 0)