diff --git a/qpms/cybspec.pyx b/qpms/cybspec.pyx
index 866c440..45cf286 100644
--- a/qpms/cybspec.pyx
+++ b/qpms/cybspec.pyx
@@ -139,6 +139,9 @@ cdef class BaseSpec:
         # TODO raise correct errors (TypeError on bad type of key, IndexError on exceeding index)
         return self.__ilist[key]
 
+    def __repr__(self):
+        return 'BaseSpec([' + ','.join('%d' % i  for i in self.__ilist) + '])'
+
     property ilist:
         def __get__(self):
             return self.__ilist