diff --git a/provider.py b/provider.py
index 745f48d..0fefe97 100644
--- a/provider.py
+++ b/provider.py
@@ -303,11 +303,11 @@ def setZoomedOutResamplingMethod(self, method):
     def setMaxOversampling(self, factor):
         return self.wms.setMaxOversampling(factor)
 
-    def writeNativeAttributeTable(self, errorMessage):
-        return self.wms.writeNativeAttributeTable(errorMessage)
+    def writeNativeAttributeTable(self):
+        return self.wms.writeNativeAttributeTable()
 
-    def readNativeAttributeTable(self, errorMessage):
-        return self.wms.readNativeAttributeTable(errorMessage)
+    def readNativeAttributeTable(self):
+        return self.wms.readNativeAttributeTable()
 
     # readBlock()