diff --git a/cryptlex/lexfloatclient/lexfloatclient.py b/cryptlex/lexfloatclient/lexfloatclient.py
index 9f6c0cc..813df46 100644
--- a/cryptlex/lexfloatclient/lexfloatclient.py
+++ b/cryptlex/lexfloatclient/lexfloatclient.py
@@ -217,9 +217,9 @@ def GetHostLicenseMeterAttribute(name):
                 HostLicenseMeterAttribute: values of meter attribute allowed and total uses
         """
         cstring_name = LexFloatClientNative.get_ctype_string(name)
-        allowed_uses = ctypes.c_uint()
-        total_uses = ctypes.c_uint()
-        gross_uses = ctypes.c_uint()
+        allowed_uses = ctypes.c_int64()
+        total_uses = ctypes.c_uint64()
+        gross_uses = ctypes.c_uint64()
         status = LexFloatClientNative.GetHostLicenseMeterAttribute(
             cstring_name, ctypes.byref(allowed_uses), ctypes.byref(total_uses), ctypes.byref(gross_uses))
         if status == LexFloatStatusCodes.LF_OK:
diff --git a/cryptlex/lexfloatclient/lexfloatclient_native.py b/cryptlex/lexfloatclient/lexfloatclient_native.py
index e116d62..12a5627 100644
--- a/cryptlex/lexfloatclient/lexfloatclient_native.py
+++ b/cryptlex/lexfloatclient/lexfloatclient_native.py
@@ -148,7 +148,7 @@ def byte_to_string(input):
 GetHostLicenseMetadata.restype = c_int
 
 GetHostLicenseMeterAttribute = library.GetHostLicenseMeterAttribute
-GetHostLicenseMeterAttribute.argtypes = [CSTRTYPE, POINTER(c_uint32), POINTER(c_uint32), POINTER(c_uint32)]
+GetHostLicenseMeterAttribute.argtypes = [CSTRTYPE, POINTER(c_int64), POINTER(c_uint64), POINTER(c_uint64)]
 GetHostLicenseMeterAttribute.restype = c_int
 
 GetHostLicenseExpiryDate = library.GetHostLicenseExpiryDate