diff --git a/src/representatives/contrib/parltrack/import_representatives.py b/src/representatives/contrib/parltrack/import_representatives.py
index 456df17377e8ed6090ee22d9aa503c904dde816b..d0f5e70d0859376532d2c4d7cf89cbd2e156740d 100644
--- a/src/representatives/contrib/parltrack/import_representatives.py
+++ b/src/representatives/contrib/parltrack/import_representatives.py
@@ -93,8 +93,8 @@ class ParltrackImporter(GenericImporter):
         changed = False
         # Issue 185. We must have a Birth date for our mep, to allow import
         # and slugifying stuff.
-        if not "Birth" in mep_json:
-            mep_json["Birth"] = {"date": "9999-01-01T00:00:00", "place":""}
+        if "Birth" not in mep_json:
+            mep_json["Birth"] = {"date": "9999-01-01T00:00:00", "place": ""}
 
         slug = slugify('%s-%s' % (
             mep_json["Name"]["full"] if 'full' in mep_json["Name"]