diff --git a/gitlab.py b/gitlab.py
index 649157172..e17be6423 100644
--- a/gitlab.py
+++ b/gitlab.py
@@ -680,6 +680,8 @@ def pretty_print(self, depth=0):
         for k in sorted(self.__dict__.keys()):
             if k == self.idAttr:
                 continue
+            if k[0] == '_':
+                continue
             v = self.__dict__[k]
             pretty_k = k.replace('_', '-')
             if six.PY2: