diff --git a/pynvml/nvml.py b/pynvml/nvml.py
index 6174672..e0f6183 100644
--- a/pynvml/nvml.py
+++ b/pynvml/nvml.py
@@ -4300,11 +4300,13 @@ def nvmlDeviceSetMemClkVfOffset(device, offset):
     _nvmlCheckReturn(ret)
     return ret
 
-def nvmlDeviceGetMemClkMinMaxVfOffset(device, minOffset, maxOffset):
+def nvmlDeviceGetMemClkMinMaxVfOffset(device):
+    min_offset = c_uint32()
+    max_offset = c_uint32()
     fn = _nvmlGetFunctionPointer("nvmlDeviceGetMemClkMinMaxVfOffset")
-    ret = fn(device, minOffset, maxOffset)
+    ret = fn(device, byref(min_offset), byref(max_offset))
     _nvmlCheckReturn(ret)
-    return ret
+    return min_offset.value, max_offset.value
 
 ## GPM ##
 #########