diff --git a/eolian/generator.py b/eolian/generator.py
index f04ee43..8b4d099 100755
--- a/eolian/generator.py
+++ b/eolian/generator.py
@@ -17,7 +17,7 @@ log.setLevel(log_level)
 
 import eolian
 
-from converters import convert_in_param, convert_out_param, conv_type_ret, \
+from .converters import convert_in_param, convert_out_param, conv_type_ret, \
     conv_cls_name, EolianTypeError, event_conversion_get
 
 # XXX: C namespaces don't include this top level name
@@ -493,6 +493,7 @@ class Constructor(object):
 
         header_params = []
         c_ctors = []
+        conv_in_py_exps = []
 
         for ctor in self.ctors:
             func = ctor.function
@@ -516,6 +517,7 @@ class Constructor(object):
                 c_type = p.type.c_type
 
                 conv_expr_py, c_type, name = convert_in_param(p.type, p.name, p.is_nonull)
+                conv_in_py_exps.append(conv_expr_py)
                 header_params.append((c_type, p.name))
                 c_call_params.append(name)
 
@@ -527,6 +529,10 @@ class Constructor(object):
         gen.write("def __init__(self, %s):" % (", ".join([" ".join((t, n)).strip() for t, n in header_params])))
         gen.indent()
 
+        for e in conv_in_py_exps:
+            if e:
+                gen.write(e)
+
         gen.write("cdef Eo *added_obj = eo_add_ref(")
         gen.indent()
         gen.write("%s(), <Eo *>parent.obj if parent is not None else NULL," % (cls_get))