diff --git a/magentoerpconnect/product.py b/magentoerpconnect/product.py
index e1c8cc92c..5ab5d31f9 100644
--- a/magentoerpconnect/product.py
+++ b/magentoerpconnect/product.py
@@ -494,11 +494,9 @@ def categories(self, record):
         # OpenERP assign 'All Products' if not specified
         # skip main cat assignment if the current main category is already in
         # categ_ids
-        if main_categ_id:
-            if self.backend_record.categ_id.id not in category_ids):
-                result['categ_id'] = main_categ_id
-            else:
-                result['categ_id'] = self.backend_record.categ_id.id
+        if (main_categ_id and
+                self.backend_record.categ_id.id not in category_ids):
+            result['categ_id'] = main_categ_id
         return result
 
     @mapping