diff --git a/tiramisu/option/baseoption.py b/tiramisu/option/baseoption.py
index 82b77f8..b0d9599 100644
--- a/tiramisu/option/baseoption.py
+++ b/tiramisu/option/baseoption.py
@@ -35,9 +35,6 @@ STATIC_TUPLE = frozenset()
 
 submulti = 2
 NAME_REGEXP = re.compile(r'^[a-zA-Z][a-zA-Z\d_-]*$')
-FORBIDDEN_NAMES = frozenset(['iter_all', 'iter_group', 'find', 'find_first',
-                             'make_dict', 'read_only',
-                             'read_write', 'getowner', 'set_contexts'])
 
 
 def valid_name(name):
@@ -46,7 +43,6 @@ def valid_name(name):
     if not isinstance(name, str):
         return False
     return re.match(NAME_REGEXP, name) is not None and \
-            name not in FORBIDDEN_NAMES and \
             not name.startswith('impl_') and \
             not name.startswith('cfgimpl_')