diff --git a/dfhack-python/constructions.py b/dfhack-python/constructions.py
index fea93ee0b..f822a54fa 100644
--- a/dfhack-python/constructions.py
+++ b/dfhack-python/constructions.py
@@ -1,5 +1,5 @@
-from ctypes import *
-from dftypes import *
+from ctypes import c_uint, byref
+from dftypes import libdfhack, Construction
 
 class Constructions(object):
     def __init__(self, ptr):