diff --git a/HISTORY.rst b/HISTORY.rst
index 0679fa34ea..e36228f633 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -30,7 +30,8 @@ Next (2018-XX-XX)
 - Add periodic AJAX workers to update the value of the notifications link.
 - Add notification count inside a badge on the notification link.
 - Add the MERC specifying javascript library usage.
-   
+- Documents without at least a version are not scanned for duplicates. 
+
 2.8 (2018-02-27)
 ================
 - Rename the role groups link label from "Members" to "Groups".
diff --git a/mayan/apps/documents/managers.py b/mayan/apps/documents/managers.py
index 9a217d72dd..652f32d134 100644
--- a/mayan/apps/documents/managers.py
+++ b/mayan/apps/documents/managers.py
@@ -116,6 +116,9 @@ class DuplicatedDocumentManager(models.Manager):
         """
         Find duplicates by matching latest version checksums
         """
+        if not document.latest_version:
+            return None
+
         Document = apps.get_model(
             app_label='documents', model_name='Document'
         )