diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index 6347ad5d0d3541b250ba6c8d3af5366dc8a61adf..f133755fdde259ea15f73afc1bf78ba646a8d692 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -549,8 +549,8 @@ class TracepointProvider(Provider):
 
     def update_fields(self, fields_filter):
         """Refresh fields, applying fields_filter"""
-        self._fields = [field for field in self.get_available_fields()
-                        if self.is_field_wanted(fields_filter, field)]
+        self.fields = [field for field in self.get_available_fields()
+                       if self.is_field_wanted(fields_filter, field)]
 
     @staticmethod
     def get_online_cpus():