diff --git a/fakeldap.py b/fakeldap.py
index a0cd5f6..a65e030 100644
--- a/fakeldap.py
+++ b/fakeldap.py
@@ -302,7 +302,7 @@ def _modify_s(self, dn, mod_attrs):
         try:
             entry = self.directory[dn]
         except KeyError:
-            raise ldap.NO_SUCH_OBJECT
+            raise self.NO_SUCH_OBJECT
 
         for item in mod_attrs:
             op, key, value = item
@@ -349,7 +349,7 @@ def _delete_s(self, dn):
         try:
             del self.directory[dn]
         except KeyError:
-            raise ldap.NO_SUCH_OBJECT
+            raise self.NO_SUCH_OBJECT
 
         return (107, [])
 
@@ -370,7 +370,7 @@ def _search_s(self, base, scope, filterstr, attrlist, attrsonly):
         attrs = self.directory.get(base)
         print attrs
         if attrs is None:
-            raise ldap.NO_SUCH_OBJECT
+            raise self.NO_SUCH_OBJECT
 
         return [(base, attrs)]