diff --git a/prometheus_client/metrics.py b/prometheus_client/metrics.py
index b7c5e5a4..12454d74 100644
--- a/prometheus_client/metrics.py
+++ b/prometheus_client/metrics.py
@@ -165,9 +165,16 @@ def remove(self, *labelvalues):
         if len(labelvalues) != len(self._labelnames):
             raise ValueError('Incorrect label count (expected %d, got %s)' % (len(self._labelnames), labelvalues))
         labelvalues = tuple(unicode(l) for l in labelvalues)
+
+        if labelvalues not in self._metrics:
+            print('The label value tuple not exists')
+            return
         with self._lock:
+            print(labelvalues)
+            print(self._metrics)
             del self._metrics[labelvalues]
 
+
     def _samples(self):
         if self._is_parent():
             return self._multi_samples()