diff --git a/ezodf/xmlns.py b/ezodf/xmlns.py
index a4af9f8..7b50764 100644
--- a/ezodf/xmlns.py
+++ b/ezodf/xmlns.py
@@ -9,7 +9,7 @@
 
 from lxml import etree
 
-from .const import ALL_NSMAP
+from ezodf.const import ALL_NSMAP
 
 def subelement(parent, tag, new=True):
     """ Find/create SubElement `tag` in parent node.